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1: Vinyl Asylum, That gouge.... (0.00)
Posted by Lew on 2024-03-19, 19:45:36 (74.96.187.104)
on the 3rd band from the outer rim is playable? Vinyl wonders never cease to amaze. Do you hear an overlying clicking sound? I'd dump that LP just on general principles, since the music is available o .......
2: Tube DIY Asylum, RE: Will a "too big" bypass capacitor "slow down" the Music. (0.00)
Posted by Lew on 2024-03-16, 20:30:10 (74.96.187.104)
I don't think there is a "standard" for choosing the value of a bypass capacitor. For example, in Morgan Jones' book on amplifier design, he recommends 1%, IIRC. This is for filter caps in a PS. Meani .......
3: Tweakers' Asylum, Mea culpa (0.00)
Posted by Lew on 2024-03-15, 13:58:30 (74.96.187.104)
So sorry I insisted the deposit would be an oxide. I see now it would likely be a sulphide, to my great surprise. .......
4: OTL Asylum, Maybe not Luxman (0.00)
Posted by Lew on 2024-03-15, 13:55:40 (74.96.187.104)
I searched on Vintage Knob for Luxman OTLs, found nothing that looks like this amplifier, even if I had a clear photo of this amplifier. .......
5: OTL Asylum, RE: Mystery DIY OTL. Help needed to figure out possible tube compliment (0.00)
Posted by Lew on 2024-03-15, 11:05:07 (74.96.187.104)
None of the small size photos you supplied will open if clicked, and the one full size photo showing the interior of the amplifier is not helpful unless one was an experienced Japanese amplifier repai .......
6: Tweakers' Asylum, Furutech? (0.00)
Posted by Lew on 2024-03-06, 11:22:25 (74.96.187.104)
Looks like a Furutech IEC I once used in a project. I love the design of the 3 contacts. Are you saying that Furutech says that connector will develop a silver sulphide coating in long term use? Maybe .......
7: Tweakers' Asylum, silver sulphide? (0.00)
Posted by Lew on 2024-03-05, 08:52:57 (74.96.187.104)
Why do you suppose the tarnish is a sulphide? More likely it is silver oxide, and silver oxide is nearly as good a conductor as pure silver, so no worries. .......
8: Tube DIY Asylum, Microphonic? (0.00)
Posted by Lew on 2024-03-03, 08:34:59 (74.96.187.104)
That tube looks like it was designed on purpose to be microphonic. Hope it is not. .......
9: Tweakers' Asylum, RE: thanks, Rephrased for clarity: tiny fractions of an Ohm DO reduce damping factor . . . (0.00)
Posted by Lew on 2024-02-29, 11:22:49 (74.96.187.104)
It's not sophisticated. The speaker "sees" the output impedance of the amplifier as the actual output impedance plus the resistance of the speaker wires. You just add the two values to get the net tot .......
10: Tweakers' Asylum, RE: Rephrased for clarity: tiny fractions of an Ohm DO reduce damping factor . . . (0.00)
Posted by Lew on 2024-02-29, 07:38:44 (74.96.187.104)
Can you hear any difference between damping factors of 70 and 35? I don't think I could. I think DF only begins to make an audible difference when it goes below 10, or somewhere in that range below 10 .......
11: Tweakers' Asylum, RE: measuring and Computing amplifier output (0.00)
Posted by Lew on 2024-02-27, 20:10:29 (74.96.187.104)
You wrote, "...my amp is rated at 50 watts into 8 ohms,I understand that this is equivalent to 72 watts at 4 ohms." It all depends upon the power supply capacity to deliver current, but the usual brag .......
12: Vinyl Asylum, RE: Adding a capacitance selector switch to.... (0.00)
Posted by Lew on 2024-02-25, 18:58:06 (74.96.187.104)
With the 12AX7, you can never get the capacitance as low as 100pF, because you start out with about 200pF due to Miller capacitance alone. And in my post below, I forgot to mention cable capacitance; .......
13: Vinyl Asylum, Grid stopper... (0.00)
Posted by Lew on 2024-02-25, 18:55:54 (74.96.187.104)
Grid stoppers are usually needed for tubes with a very high transconductance, because such tubes have a tendency to oscillate. That does not describe the 12AX7. The 12AX7 has a high plate resistance a .......
14: Vinyl Asylum, RE: Adding a capacitance selector switch to.... (0.00)
Posted by Lew on 2024-02-24, 18:34:37 (74.96.187.104)
If memory serves, the EAR uses a 12AX7 input tube in the phono stage. If so, keep in mind that the 12AX7 has a fairly high input capacitance, largely because of its high gain. All tube and SS devices .......
15: Vinyl Asylum, What cartridge? (0.00)
Posted by Lew on 2024-02-22, 12:38:17 (74.96.187.104)
Also, I gather you are reporting subjective results, not bench tests. With LOMCs, I have consistently found that I either prefer to run them "wide open" (with load R at least 1000 ohms up to 47K ohms) .......
16: Vinyl Asylum, RE: Hagerman Piccolo Zero Headamp (0.00)
Posted by Lew on 2024-02-20, 16:01:30 (74.96.187.104)
The fly in the ointment, as I mentioned, is that all of the current driven phono stages I have been able to ferret out information about (pardon the grammar, Duke) do present a very low but finite, no .......
17: Vinyl Asylum, RE: Hagerman Piccolo Zero Headamp (0.00)
Posted by Lew on 2024-02-20, 12:46:41 (74.96.187.104)
"If the coil is now shorted (into a transimpedance amp)..." Isn't that tantamount to a mute switch? I (think) I understand that a virtual ground for an op amp is a node centered between the positive a .......
18: Tweakers' Asylum, RE: i am using.... (0.00)
Posted by Lew on 2024-02-17, 10:21:42 (74.96.187.104)
Nordost used to, and maybe still, make banana plugs that are naught but rolled pieces of copper. They were standard terminations on their lower priced speaker wires. Though I am not a fan of the expen .......
19: Tube DIY Asylum, RE: I forgot about that- it complicates things. (0.00)
Posted by Lew on 2024-02-15, 12:21:43 (74.96.187.104)
To your last question, yes. And yes I ran a sine wave through the circuit before finalizing. In fact I swept it from 20Hz to 10kHz. Now I think about it, I need to make a small correction in the calcu .......
20: Tube DIY Asylum, RE: 10uf isn't enough. (0.00)
Posted by Lew on 2024-02-15, 10:59:16 (74.96.187.104)
What about the CCS? Would the CCS figure into the impedance seen at the plate of the CF, using the equation Z (looking down from the plate)= Rp+(mu+1)*Rk, where Rk is the very high Z of the CCS? In th .......
21: Tube DIY Asylum, RE: cathode follower plate voltage varies with current (0.00)
Posted by Lew on 2024-02-14, 12:47:11 (74.96.187.104)
As mentioned, 5-6mA. Way below max plate dissipation with 250V plate voltage, now that Paul pointed out I was incorrect in my assumption that max plate V for ECC99 is 200V. (It's actually 400V per sec .......
22: Tube DIY Asylum, RE: data sheet says 400v (0.00)
Posted by Lew on 2024-02-13, 08:02:53 (74.96.187.104)
I'm convinced and happy to leave well enough alone. Thx for setting me straight. .......
23: Tube DIY Asylum, RE: data sheet says 400v (0.00)
Posted by Lew on 2024-02-12, 17:49:47 (74.96.187.104)
Very like me to misread the data sheet, if that's the case. I probably was reading Vhk on my cell phone without my reading glasses, but is the 400V per section? Seems high. .......
24: Tube DIY Asylum, cathode follower plate voltage (0.00)
Posted by Lew on 2024-02-12, 15:34:40 (74.96.187.104)
I have posted schematics showing 3 versions of a cathode follower: A, B, and C. The tube is one half of an ECC99. In all cases, there is a solid state CCS in the cathode, as I hope is clear. With n .......
25: Vinyl Asylum, The original Contemporary is not exactly chopped liver, either (nt) (0.00)
Posted by Lew on 2024-02-09, 16:07:30 (74.96.187.104)
nt .......
26: Vinyl Asylum, RE: $636 for the MP-300 from Amazon. Ooof. (0.00)
Posted by Lew on 2024-02-01, 06:34:00 (74.96.187.104)
Amazon price is almost never the best price. .......
27: Vinyl Asylum, RE: Any reason to go for Ortofon DS-3 pressure gauge? (0.00)
Posted by Lew on 2024-01-14, 18:29:50 (74.96.187.104)
I've not seen a Jelco digital stylus force gauge, but I am sure all of these digital types can be or are similar in specifications, which really amounts to a measure of their accuracy. But where some .......
28: Vinyl Asylum, RE: Any reason to go for Ortofon DS-3 pressure gauge? (0.00)
Posted by Lew on 2024-01-14, 13:39:26 (74.96.187.104)
Does your current "cheap digital gauge" place the weigh pan at the level of the surface of a typical LP, when you place it on a naked platter mat? And is the weigh pan even slightly magnetic? If the a .......
29: Tube DIY Asylum, I think he was re-designing the Beveridge direct drive amplifier,... (0.00)
Posted by Lew on 2024-01-14, 13:16:12 (74.96.187.104)
or some other version of a direct drive amplifier for ESLs. By "direct drive", I mean no output transformer and no input transformer on the speaker side. .......
30: Vinyl Asylum, Nagaoka MP500 is an MI cartridge,.... (0.00)
Posted by Lew on 2024-01-12, 10:19:36 (74.96.187.104)
and a darn good one. Not MM. .......
31: Vinyl Asylum, Ella + Louis (0.00)
Posted by Lew on 2024-01-12, 08:59:57 (74.96.187.104)
Sublime. Sometimes brings a tear to my eye. .......
32: Vinyl Asylum, RE: Even though the sleeve says "Mastered by Ryan K. Smith..." (0.00)
Posted by Lew on 2024-01-11, 20:05:27 (74.96.187.104)
I don't have the original Verve, either. But I do have maybe ten or more original Verve LPs featuring Ella. If you listen to those, then you might appreciate why I was and am slightly dissatisfied wit .......
33: Vinyl Asylum, Not my favorite Ella,... (0.00)
Posted by Lew on 2024-01-11, 07:55:18 (74.96.187.104)
but a worthy sample and interesting for the lack of a full orchestra backup. I own a Classic or other re-issue, and I don't think it's up to original Verve standards purely in terms of sound quality. .......
34: Vinyl Asylum, RE: Some things to think about .... (0.00)
Posted by Lew on 2024-01-09, 14:02:02 (74.96.187.104)
Shield can protect against radiated EMI, but what I brought up was EMI that can be put back on the AC line by the motor and then carried via conductors to other gear. Two different phenomena. A good m .......
35: Vinyl Asylum, RE: Some things to think about .... (0.00)
Posted by Lew on 2024-01-08, 15:12:53 (74.96.187.104)
Another benefit to "never connected", if that condition is really achieved, is that the TT motor can never put noise (EMI) back on to the AC that supplies the rest of the system. I would venture to sa .......
36: Vinyl Asylum, "Bump off" is the apt phrase,.. (0.00)
Posted by Lew on 2024-01-05, 09:07:03 (74.96.187.104)
when it comes to power washing LPs. .......
37: Vinyl Asylum, RE: SUT guidance (0.00)
Posted by Lew on 2024-01-04, 09:46:00 (74.96.187.104)
Was just trying to keep it simple, but thanks for adding precision and insight. I probably should have added a qualifier to my bald statement that SUTs have no intrinsic impedance, like "for practical .......
38: Vinyl Asylum, Good point, Dave... (0.00)
Posted by Lew on 2024-01-02, 20:00:16 (74.96.187.104)
I obviously ignored the 3rd line on the label, in my analysis of what it is. So, I dunno. .......
39: Vinyl Asylum, RE: SUT guidance (0.00)
Posted by Lew on 2024-01-02, 15:07:24 (74.96.187.104)
Here is what I think it may mean: Into a 50,000 ohm impedance, the cartridge will see 600 ohms, which in turn suggests that the SUT offers a step-up ratio of about 1:9, or to be precise, the math equ .......
40: Vinyl Asylum, As you should be... (0.00)
Posted by Lew on 2024-01-02, 11:21:15 (74.96.187.104)
your idea is really cool. Thanks for providing the reference. I had forgotten exactly how it worked. .......
41: OTL Asylum, Ralph, I sent you a PM (0.00)
Posted by Lew on 2024-01-02, 09:54:20 (74.96.187.104)
nt .......
42: OTL Asylum, RE: OTL vs. Class D? (0.00)
Posted by Lew on 2024-01-02, 08:49:27 (74.96.187.104)
I think you want someone to tell you that the Class D amp is just as good sounding as the OTLs. On a high-ish impedance speaker, I am not sure you will find such a person. You probably will have to de .......
43: Vinyl Asylum, RE: SUT guidance (0.00)
Posted by Lew on 2024-01-02, 07:39:47 (74.96.187.104)
A SUT, or any other transformer, has no intrinsic impedance. It reflects the impedances connected to it, according to the square of its turns ratio. Typically a SUT would be connected to an MM phono s .......
44: Vinyl Asylum, Relation between Fr and effective mass (0.00)
Posted by Lew on 2023-12-30, 09:20:11 (74.96.187.104)
Based on the math, I would expect Fr to be reduced by less than 2-fold, if you double effective mass, because the generally accepted equation relates the two parameters based on the inverse of the squ .......
45: Vinyl Asylum, What Story said (0.00)
Posted by Lew on 2023-12-29, 16:51:54 (74.96.187.104)
I would think about the possible shortcomings of the 681 as a transducer, as a source of your dissatisfaction, before worrying about a compliance/effective mass mismatch. Anyway, as you probably know, .......
46: OTL Asylum, RE: The MP-1 and MP-3 servo system (0.00)
Posted by Lew on 2023-12-27, 12:43:28 (74.96.187.104)
You want the 6.3V version. .......
47: OTL Asylum, RE: The MP-1 and MP-3 servo system (0.00)
Posted by Lew on 2023-12-25, 18:22:58 (74.96.187.104)
No need to check; I am sure the filament supplies are +/-6.3V, and the 12AU7 receives 6.3V. .......
48: OTL Asylum, RE: The MP-1 and MP-3 servo system (0.00)
Posted by Lew on 2023-12-25, 14:54:34 (74.96.187.104)
"Ask Ralph", but the circuit should work for a 6SN7, as is. I just also noticed you can buy an adapter socket that plugs into a 12AU7 socket and provides pin holes on the top side for a 6SN7, for only .......
49: OTL Asylum, RE: The MP-1 and MP-3 servo system (0.00)
Posted by Lew on 2023-12-25, 09:52:27 (74.96.187.104)
I think I did the tube regulator to solid state regulator cum CCS, very soon after I purchased my MP1. I have also removed the 12AU7 socket and replaced it with an octal, so I have been using 6SN7s fo .......
50: Tube DIY Asylum, Same to you, Paul. (0.00)
Posted by Lew on 2023-12-24, 15:16:16 (74.96.187.104)
Up there in NJ. .......
51: OTL Asylum, RE: The MP-1 and MP-3 servo system (0.00)
Posted by Lew on 2023-12-24, 15:14:19 (74.96.187.104)
Thanks for the tip. As Ralph knows and hinted at in his response, my MP1 is very old, probably mid-1990s vintage. I have owned it for more than 20 years myself. Along the way I have upgraded it in par .......
52: OTL Asylum, RE: The MP-1 and MP-3 servo system (0.00)
Posted by Lew on 2023-12-22, 13:21:39 (74.96.187.104)
Forgot to mention the most obvious cause: one of the 6SN7s is not up to snuff. I will look into that. And yes, my MP1 does have solid state voltage regulation in conjunction with constant current sour .......
53: Tweakers' Asylum, Also,... (0.00)
Posted by Lew on 2023-12-22, 10:26:16 (74.96.187.104)
are you saying the trumpet is reduced in SPLs in the condition where the short circuit to ground has been eliminated? If so, make sure it actually is eliminated before drawing any other conclusion. (I .......
54: OTL Asylum, I guess I should add.... (0.00)
Posted by Lew on 2023-12-22, 10:05:41 (74.96.187.104)
Central to my question is how much DC offset V is permitted by the servo system, before it would light up the warning LED? .......
55: OTL Asylum, Excessive DC offset on MP1 (0.00)
Posted by Lew on 2023-12-22, 09:57:21 (74.96.187.104)
The R channel LED on my MP1 stays lit, doesn't go out after a few minutes of power on and warm-up. I measured the actual DC offset for that channel, and it reads ~55mV. Is that much DC offset likely t .......
56: OTL Asylum, RE: 5692 (0.00)
Posted by Lew on 2023-12-19, 19:02:30 (74.96.187.104)
I've had that happen, where the clicking of the attenuator is enough to set off the tube. In the MP1,the pot is located close to the R channel linestage input gain tube, which makes for a problem in t .......
57: OTL Asylum, 5692 (0.00)
Posted by Lew on 2023-12-18, 20:02:32 (74.96.187.104)
I have a few but have not used them for many years. I don't recall their being particularly microphonic. They are more robustly constructed, internally, compared to other 6SN7s, so I might have though .......
58: OTL Asylum, Yep.. (0.00)
Posted by Lew on 2023-12-17, 09:08:17 (74.96.187.104)
Any 6SN7, but it seems especially some of the best vintage ones, like the KenRad, is apt to be somewhat microphonic. I use ring dampers on the linestage voltage amplifier tubes in my MP1, for what it' .......
59: Vinyl Asylum, RE: Funniest Audiophile film ever made....IMO! (0.00)
Posted by Lew on 2023-12-16, 20:01:14 (74.96.187.104)
You gotta love and understand those guys.... They are us. .......
60: OTL Asylum, Don't bother.... (0.00)
Posted by Lew on 2023-12-16, 12:51:14 (74.96.187.104)
They have much more current capacity compared to a 6C33C, but each tube has 3 cathodes. So you are faced with the issue of either selecting tubes where the plate current to each of the 3 cathodes is w .......
61: OTL Asylum, My 6C33C amplifiers were otherwise known as "MA240" (0.00)
Posted by Lew on 2023-12-13, 12:01:51 (74.96.187.104)
Ralph discontinued that particular model in the late 90s shortly after I bought my pair, in kit form from the factory. The MA240 used six 6C33Cs per monoblock, and it was essentially a 6C33C-based ver .......
62: OTL Asylum, RE: Question on biasing MA-1 with DMM (0.00)
Posted by Lew on 2023-12-10, 16:10:15 (74.96.187.104)
Dunno. My amps have no built in meter, because they are wired so I can bias the output tubes individually. (There are only four per chassis, 7241s.) I still have the meters that came with, but they ar .......
63: OTL Asylum, RE: Question on biasing MA-1 with DMM (0.00)
Posted by Lew on 2023-12-09, 20:03:35 (74.96.187.104)
I'll take a stab. Because that's what you want to measure when adjusting bias. The current you are measuring comes from the rectified and filtered output of the low voltage power supply. Therefore it .......
64: Tweakers' Asylum, RE: Using Rochelle salt to absorb EMI from your homes AC line to supercharge your audio system performance (0.00)
Posted by Lew on 2023-12-08, 08:43:29 (74.96.187.104)
Is there any added value in treating outlets that are not in use and/or light switches that are in the "off" position? No current is flowing in those two instances, so no EMI, I would think. ::: TOPIC .......
65: Vinyl Asylum, Escape clause (0.00)
Posted by Lew on 2023-12-08, 08:37:41 (74.96.187.104)
I guess I can claim that my words, ..."unless there is a tonearm, etc", could be construed to include the exception to my "rule". Thanks for pointing out that the headshell is aimed at a particular ty .......
66: OTL Asylum, RE: Beveridge OTL amps (0.00)
Posted by Lew on 2023-12-07, 14:15:41 (74.96.187.104)
Just saw this thread. I have many years of experience keeping my 2SWs up and running, and in the process I learned a lot by trial and many errors and by consultation with a fellow Ayslum member who is .......
67: Vinyl Asylum, Ortofon LH9000 (0.00)
Posted by Lew on 2023-12-02, 11:29:36 (74.96.187.104)
Also 18g. Does much for my Koetsu Urushi on a FR64S. .......
68: Vinyl Asylum, Alignment (0.00)
Posted by Lew on 2023-12-01, 15:35:57 (74.96.187.104)
I think you would in fact have to align the cartridge, unless there is a tonearm specified for use with this headshell, exclusively. Otherwise, you would have to adjust effective length by altering th .......
69: Vinyl Asylum, very clever idea (0.00)
Posted by Lew on 2023-12-01, 15:33:55 (74.96.187.104)
nt .......
70: OTL Asylum, I still use Goertz silver ribbons (0.00)
Posted by Lew on 2023-11-18, 08:03:25 (74.96.187.104)
See my post above in response to what Ralph said. What was most obvious when I did some trials with different cables back whenever, was that cables with high CI sounded very bad. This is with Atma-sph .......
71: OTL Asylum, But no speaker has a constant impedance at all frequencies, ... (0.00)
Posted by Lew on 2023-11-18, 07:58:59 (74.96.187.104)
whereas Characteristic Impedance for a cable is a constant. So, on balance, is one best off using a cable that has a CI lower than the low end of the speakers impedance, or what? Many years ago, after .......
72: Tweakers' Asylum, Ditto (0.00)
Posted by Lew on 2023-11-12, 08:27:09 (74.96.187.104)
I've done this on the low voltage PS in my Atma-sphere amps, replaced one huge can with a gaggle of much smaller, much lower ESR Panasonic TS-ED caps for higher total capacitance and yet better sound. .......
73: Planar Speaker Asylum, The protests will be nowhere close to CAF (0.00)
Posted by Lew on 2023-11-09, 11:39:09 (74.96.187.104)
The CAF is at a large hotel in Rockville, MD, which is a suburb of DC but not even a contiguous one (Bethesda lies in between the border of DC and Rockville). The protests will be downtown in the Fede .......
74: Vinyl Asylum, RE: Fastest selling vinyl record ever? (0.00)
Posted by Lew on 2023-11-09, 10:18:30 (74.96.187.104)
"The big difference is there are many millions more buyers now than decades ago." I guess if you think global, you have a point. .......
75: Vinyl Asylum, RE: Fastest selling vinyl record ever? (0.00)
Posted by Lew on 2023-11-07, 15:20:56 (74.96.187.104)
I have to wonder what are the analogous numbers for "Thriller" or any of several Beatles or Rolling Stones albums. Or even "Kind of Blue". I guess the key is that any or all of those albums may have s .......
76: Vinyl Asylum, Wow! (0.00)
Posted by Lew on 2023-10-30, 13:57:53 (74.96.187.104)
Whoever thought up that complex hypothesis around vacuum-based RCMs was working overtime on paranoia. Nothing in my present and past experience with my VPI HW17 would lead me to believe it has any val .......
77: Tube DIY Asylum, RE: soldering station temperature (0.00)
Posted by Lew on 2023-10-30, 13:42:59 (74.96.187.104)
If there is no temperature gauge, then what you have is not likely to be a "soldering station", which term, I think, specifically means that the device holds the temperature at the tip to a set level. .......
78: Tube DIY Asylum, RE: soldering station temperature (0.00)
Posted by Lew on 2023-10-18, 09:41:18 (74.96.187.104)
I am not sure what Hakko you are using, but I use this relatively inexpensive Hakko soldering station. It's fantastic in my opinion and does a great job controlling temperature. Comes up to temp in le .......
79: Vinyl Asylum, RE: RCM specs and features (0.00)
Posted by Lew on 2023-10-18, 09:34:12 (74.96.187.104)
I have a 17F also, and I agree it is noisy. But it is only noisy when the vacuum pump is operating, and the pump operates for less than a minute per LP side. The rest of the time is taken up in removi .......
80: Vinyl Asylum, What's remarkable to me.... (0.00)
Posted by Lew on 2023-10-07, 08:17:05 (74.96.187.104)
is the claim he only started collecting in 2000. I've been a vinylista since the early 70s and own only 2500 to 3000 LPs, none of them historically interesting 78s or even 45s. Is the article trying t .......
81: Vinyl Asylum, RE: MM Phono Stages With Gain Greater Than 40 dB (0.00)
Posted by Lew on 2023-10-05, 18:38:28 (74.96.187.104)
I am not sure how one can draw a general conclusion on this question, because amplifiers differ from one another in their input sensitivity and of course speakers differ greatly in efficiency from one .......
82: Vinyl Asylum, RE: "Low output MCs are insensitive to capacitive loading" (0.00)
Posted by Lew on 2023-09-30, 12:44:06 (74.96.187.104)
How about 200R and 500pF or 400R and 250pF? .......
83: Vinyl Asylum, RE: This turntable mat is NOT for the masses. (0.00)
Posted by Lew on 2023-09-26, 15:05:36 (74.96.187.104)
You've really got to love this sentence from the Galen Carol website: "The resonance optimization between the record and turntable is essential for the best reproduction quality of a turntable. Unique .......
84: Vinyl Asylum, RE: LP Gear "Improved Replacement" Styli (0.00)
Posted by Lew on 2023-09-26, 14:56:39 (74.96.187.104)
LP Gear received a lot of negative comments a few years ago for implying their replacement styli were OEM. I guess they've found another way to phrase their ad copy in order not to be so blatantly mis .......
85: Vinyl Asylum, RE: hot air on turntables (0.00)
Posted by Lew on 2023-03-26, 09:24:18 (74.96.190.193)
Can hardly think of a worse idea than mounting the essential parts of a turntable into the wall of a typical home, unless you live in a bank vault or in a sunken basement made of concrete (and even th .......
86: Vinyl Asylum, RE: bearing grease (0.00)
Posted by Lew on 2023-02-22, 09:10:06 (74.96.190.193)
Maybe xaudiomax will do as you suggest. I am assuming that the bearing in his TT is from an older vintage SOTA and would still be the sapphire. Apparently, he went ahead with a usual hardware store lu .......
87: Vinyl Asylum, RE: bearing grease (0.00)
Posted by Lew on 2023-02-21, 08:01:53 (74.96.190.193)
If the bearing is from SOTA, why not ask them for a recommendation? They use or used sapphire which might have special requirements. .......
88: Tweakers' Asylum, RE: That is what I was going to say. (0.00)
Posted by Lew on 2023-02-04, 09:52:19 (74.96.190.193)
Some interconnect manufacturers, e.g., MIT and Transparent, insert a "black box" at the downstream end of their ICs and speaker wires, which so far as I know contains either just a capacitor or an RC .......
89: Tweakers' Asylum, RE: No go on that. . (0.00)
Posted by Lew on 2023-02-04, 09:45:33 (74.96.190.193)
Bill is one of the nicest guys I have ever met in the audio business, and he is very honest. I have a Sencore LC75 that has become unreliable, some sort of intermittent problem. I have resolved to try .......
90: Tweakers' Asylum, RE: Turn it around (0.00)
Posted by Lew on 2023-02-01, 17:59:53 (74.96.190.193)
Problem is that most audiophile fuses are not UL approved. Thus one cannot be sure they will do their job as fuses when and if the time comes. It is in fact not reassuring to learn they have lower res .......
91: Tweakers' Asylum, What's inside an SR fuse? (0.00)
Posted by Lew on 2023-02-01, 17:53:52 (74.96.190.193)
I always wondered about the symbols on the outside that make it appear there is a diode or a capacitor inside. (I forget which, and you can bet I own no SR fuses that would allow me to refresh my memo .......
92: Tweakers' Asylum, RE: Fuse direction? (0.00)
Posted by Lew on 2023-02-01, 17:50:46 (74.96.190.193)
You don't understand the scientific method, or statistics. But you're having fun, and that's what counts. .......
93: Tweakers' Asylum, Quantum cow dung is now available as a tweak (0.00)
Posted by Lew on 2023-02-01, 17:49:28 (74.96.190.193)
Cost is atmospheric. .......
94: Tweakers' Asylum, Who is "they", with the $10K fuses for sale? (0.00)
Posted by Lew on 2023-02-01, 17:44:21 (74.96.190.193)
Thanks. I gotta see this to believe it. .......
95: Tweakers' Asylum, RE: Any idea on where to be a Sencore LC102 repaired? (0.00)
Posted by Lew on 2023-02-01, 17:38:12 (74.96.190.193)
You might try Bill Thalmann at Music Technologies in Springfield, VA. Be prepared to wait; he has a backlog. .......
96: Vinyl Asylum, RE: cartridge retipping (0.00)
Posted by Lew on 2023-02-01, 17:33:32 (74.96.190.193)
Cost depends upon the work you want done, to some degree. For example, do you want just the stylus tip replaced or do you want both cantilever and stylus renewed? If the latter, what materials and sty .......
97: Vinyl Asylum, I remember it and their jingle very well (0.00)
Posted by Lew on 2023-01-18, 10:25:54 (198.52.242.12)
https://youtu.be/f_51RANXHg0 .......
98: Tube DIY Asylum, RE: No, not really. (0.00)
Posted by Lew on 2022-12-30, 06:29:20 (74.96.190.193)
In my case I noticed I did not like the sound of the 12AU7 first, before I knew anything about tube curves, etc. I always preferred the 6SN7 and the 6CG7 and 6FQ7 to that of the 12AU7. And THEN I foun .......
99: Vinyl Asylum, RE: Revolver (0.00)
Posted by Lew on 2022-12-13, 05:56:24 (74.96.190.193)
I have a Parlophone. It's fantastic in my particular system. What release are you listening to.? .......
100: Tweakers' Asylum, RE: Brass is an alloy of copper and zinc (0.00)
Posted by Lew on 2022-12-01, 19:39:40 (74.96.190.193)
I guess no one remembers Edison speaker wire binding posts which could accommodate either a spade connector or a banana plug. Edisons were made of copper (tellurium?). You could never get them really .......
101: Vinyl Asylum, RE: Beats hell out of the alternative sleeve (0.00)
Posted by Lew on 2022-11-30, 16:02:25 (74.96.190.193)
Great music on that LP, no matter how you slice it or name it. .......
102: Vinyl Asylum, RE: Now playing: The Jazztet. (0.00)
Posted by Lew on 2022-11-23, 21:13:41 (50.229.177.99)
Have that LP and a few more of the Jazztet. Was a big fan of the Jazztet and of Art Farmer in general back in their prime years. I love the tight collaborations between Farmer and Golson. They could p .......
103: Tube DIY Asylum, Thanks for your input, Tre' (0.00)
Posted by Lew on 2022-11-19, 16:22:37 (74.96.190.193)
Do you have a particular criticism of the K&K cascode CCS circuit? I was trying to read between the lines of your post to detect whether that is the case. Perhaps the fact that you offer up to differe .......
104: Tube DIY Asylum, RE: K&K Audio (0.00)
Posted by Lew on 2022-11-19, 06:48:52 (74.96.190.193)
Seems I'm going to be making my own. I actually have all the parts except the proper heat sinks. .......
105: Tube DIY Asylum, RE: Source for compact cascode CCS kit a la K&K (0.00)
Posted by Lew on 2022-11-18, 16:06:12 (74.96.190.193)
I went to the K&K website directly before posting. What I found is exactly what I also find when I click on the URL that you refer to, available at the main AA page. You get to a site where Kevin anno .......
106: Tube DIY Asylum, RE: Source for compact cascode CCS kit a la K&K (0.00)
Posted by Lew on 2022-11-18, 11:42:58 (107.77.202.140)
Thanks. Will do. .......
107: Tube DIY Asylum, Source for compact cascode CCS kit a la K&K (0.00)
Posted by Lew on 2022-11-18, 08:28:17 (74.96.190.193)
I have used the K&K compact cascode current source kits many times, and I have no complaints, but K&K seems to be truly defunct. I get no response from K&K to my emails, at least, and I do have both t .......
108: Tube DIY Asylum, Potentiometer vs resistor (0.00)
Posted by Lew on 2022-11-10, 11:05:48 (74.96.190.193)
I would stick with potentiometers because you are able to adjust bias over time to compensate for tube aging and losing transconductance. .......
109: Vinyl Asylum, RE: Old school strobe (0.00)
Posted by Lew on 2022-10-30, 07:24:29 (74.96.190.193)
And KAB strobe is battery powered, more accurate than AC. .......
110: Tweakers' Asylum, RE: Tried one of those Trifield EMI noise meters... (0.00)
Posted by Lew on 2022-10-26, 16:42:45 (74.96.190.193)
If the Torus is naught but an isolation transformer, you wouldn't expect it to filter any frequencies within its bandwidth. You'd want to add some sort of actual filter. .......
111: Vinyl Asylum, RE: Now playing: More from the ECM catalog... (0.00)
Posted by Lew on 2022-10-20, 10:55:47 (74.96.190.193)
Every ECM is a gem and worth the listen, whether you love the music or not. Usually I love the music, especially Chick Corea and Gary B. .......
112: Vinyl Asylum, RE: crying in my beer over enhanced turntable power supply. (0.00)
Posted by Lew on 2022-10-13, 16:13:32 (74.96.190.193)
If you're convinced a DC motor is inherently superior to a 3-phase AC motor for running a belt-drive, then there's nothing further to discuss. On the other hand, if your thinking is a bit flexible, I .......
113: Vinyl Asylum, RE: FWIW (and it may not be much)... (0.00)
Posted by Lew on 2022-10-13, 16:09:46 (74.96.190.193)
What is the perceived problem you are trying to "fix"? .......
114: Vinyl Asylum, RE: crying in my beer over enhanced turntable power supply. (0.00)
Posted by Lew on 2022-10-13, 06:10:55 (74.96.190.193)
Have fun. .......
115: Tweakers' Asylum, Bingo! (0.00)
Posted by Lew on 2022-10-11, 09:52:48 (74.96.190.193)
The "pressure" or tightness hypothesis makes some sense, especially if the outlet has been in use for a couple of years. .......
116: Tweakers' Asylum, RE: Top /bottom of AC outlet (0.00)
Posted by Lew on 2022-10-11, 09:50:12 (74.96.190.193)
I've changed out a lot of painted over and ancient AC sockets in our house over the past 30 years. In every case I can recall, both the old socket and the new replacement socket, usually purchased at .......
117: Tube DIY Asylum, The question for me is.... (0.00)
Posted by Lew on 2022-10-11, 09:44:19 (74.96.190.193)
why does the B+ fuse blow so frequently? Have you mentioned this to Manley? Maybe they have gone to a heftier fuse in later versions of the Snapper, or maybe there is a problem that needs correcting. .......
118: Vinyl Asylum, RE: crying in my beer over enhanced turntable power supply. (0.00)
Posted by Lew on 2022-10-09, 14:49:28 (74.96.190.193)
I have only read the SOTA Eclipse website, but it does say "For all non-SOTA turntables please review the motor size PDF below, and read owners manual to check compatibility. Will work with many VPI t .......
119: Vinyl Asylum, RE: FWIW (and it may not be much)... (0.00)
Posted by Lew on 2022-10-08, 15:22:05 (74.96.190.193)
With turntables, it's not about "power" per se, so long as you do supply at least the recommended Watts for the motor, but all turntable motors I have ever heard of require less than 50W, usually much .......
120: Vinyl Asylum, RE: crying in my beer over enhanced turntable power supply. (0.00)
Posted by Lew on 2022-10-08, 09:17:01 (74.96.190.193)
3 motors is a classic example of the cure being worse than the disease. I guess you're saying that you don't want to spend $1500 on the Michell device. Therefore you also don't want to spend $1300 on .......
121: Vinyl Asylum, RE: crying in my beer over enhanced turntable power supply. (0.00)
Posted by Lew on 2022-10-07, 13:18:30 (74.96.190.193)
If your existing motor is an AC synchronous type, it might well work fine driven by the Condor power supply, also offered by SOTA for $395. The only requirement would be the power consumed by the moto .......
122: Vinyl Asylum, RE: crying in my beer over enhanced turntable power supply. (0.00)
Posted by Lew on 2022-10-06, 14:34:56 (74.96.190.193)
I figured out the business about the exchange rate arises because of the cost of the Mitchell upgrade. I'm suggesting you should consider the SOTA Eclipse, made in USA. .......
123: Vinyl Asylum, RE: crying in my beer over enhanced turntable power supply. (0.00)
Posted by Lew on 2022-10-06, 12:03:44 (107.77.203.102)
Umm...- what has this got to do with your original question? Are you in UK? .......
124: Vinyl Asylum, RE: crying in my beer over enhanced turntable power supply. (0.00)
Posted by Lew on 2022-10-06, 10:01:09 (74.96.190.193)
For that kind of money, I would consider ditching the OEM motor in favor of the SOTA Eclipse system, which includes a new motor and a regulated outboard PS using servo feedback to maintain constant sp .......
125: Vinyl Asylum, Two good movies, though. (0.00)
Posted by Lew on 2022-09-25, 09:05:55 (72.66.25.174)
The remake of "Stepford Wives", the movie, is hilarious. .......
126: Vinyl Asylum, RE: Opinion on buying used MC cart? (0.00)
Posted by Lew on 2022-09-01, 13:21:15 (72.66.25.174)
I would proceed with purchase If and only if the seller would agree to have the cartridge inspected by a competent professional third-party, like sound Smith or any of the other competent retippers, a .......
127: Vinyl Asylum, RE: Depends on who you ask (0.00)
Posted by Lew on 2022-08-12, 08:11:29 (72.66.25.174)
It's perhaps a misnomer to speak of the 70s as the heyday of direct drive. Actually the best direct Drive designs came into use at the very end of the 1970s, when the use of a quartz reference for mai .......
128: Vinyl Asylum, RE: The best units (0.00)
Posted by Lew on 2022-08-12, 07:55:48 (72.66.25.174)
Technics SP10 mk2 and mk3 Denon DP80 Kenwood L07D and some lesser models Pioneer Exclusive P3 and P10 Yamaha GT2000 and GT2000X Sony PSX9 Luxman PD444 or 441 Victor TT101 and 801 Pioneer PL70 I'm sure .......
129: Vinyl Asylum, RE: The electronics. (0.00)
Posted by Lew on 2022-08-12, 07:49:26 (72.66.25.174)
I don't know about Dual, but I was able to obtain NOS chips for Denon DP80 and Victor TT101 which were both supposedly NLA, by a simple internet search. Fidelis Analog make a chip for Technics SP10 mo .......
130: Vinyl Asylum, What's going to wear out? (0.00)
Posted by Lew on 2022-08-10, 17:38:58 (72.66.25.174)
Bearings can be rebuilt or replaced or even upgraded. So can switches. Other than that there's just generic electronics. The best units(not on the OP's list) were built like tanks to begin with. I've .......
131: Vinyl Asylum, Edgar Villchur's advice on anti-skating (0.00)
Posted by Lew on 2022-08-04, 09:09:27 (72.66.25.174)
I've read that quote elsewhere too, about increasing VTF to alleviate the skating force. I was always surprised that a man as brilliant as he obviously was would say such a thing. To the point where I .......
132: Vinyl Asylum, RE: Geez! AND Crap!..... (0.00)
Posted by Lew on 2022-08-03, 17:24:41 (72.66.25.174)
Your trailer quotation; didn't Yeats say much the same thing using better words, in his epic poem about WW1, "The Second Coming"? Maybe Yeats was paraphrasing Bertrand Russell, or vice-versa. I looked .......
133: Vinyl Asylum, Regular exercise (0.00)
Posted by Lew on 2022-08-02, 21:38:17 (72.66.25.174)
within your personal limits is definitely beneficial. .......
134: Vinyl Asylum, RE: Audiophilia and degenerative diseaases (Parkinsons etc) (0.00)
Posted by Lew on 2022-08-02, 11:04:05 (72.66.25.174)
Parkinson's disease will probably have no effect at all on your hearing acuity. It may have an effect on your ability to go through the physical acts necessary to play single LPs on your 401. But once .......
135: Vinyl Asylum, RE: Shibata vs. Line Contact Styli...... (0.00)
Posted by Lew on 2022-07-30, 21:31:09 (72.66.25.174)
I suggest you go to the Soundsmith website and read the white paper on "Stylus Shape Information". .......
136: Tweakers' Asylum, RE: A "Quantum Science" fuse... (0.00)
Posted by Lew on 2022-07-29, 12:51:10 (72.66.25.174)
I did not say fuses don't make a difference. I am too wary of the belief system here to want to antagonize anyone. I intended to point out that there is nothing about the design of a fuse per se that .......
137: Tweakers' Asylum, A "Quantum Science" fuse... (0.00)
Posted by Lew on 2022-07-29, 09:56:29 (72.66.25.174)
is neither Quantum nor Science. It's just a fuse. .......
138: Tweakers' Asylum, RE: Use Resistor to change speaker from 8 ohm to 4 ohm? (0.00)
Posted by Lew on 2022-07-29, 09:54:32 (72.66.25.174)
It's hard to believe Nelson Pass would endorse such a thing, unless the amp uses some odd power transistors that are especially sensitive to speaker impedance. But still, it's not a good idea for all .......
139: Vinyl Asylum, Grace Ruby cartridge with Grace 714 tonearm (0.00)
Posted by Lew on 2022-07-29, 08:53:55 (72.66.25.174)
I own both, but I've never mated the two. (The 714 has a teak arm wand.) Has anyone ever heard this combo? Is there a special synergy, keeping in mind the actual definition of "synergy"? The Ruby in o .......
140: Vinyl Asylum, RE: Thanks but... (0.00)
Posted by Lew on 2022-07-29, 08:46:14 (72.66.25.174)
I don't like the Turntable Basics, but I own two of them. PM me if you want one cheap. .......
141: Vinyl Asylum, RE: HOMM and phono pre with variable gain (0.00)
Posted by Lew on 2022-07-22, 08:40:03 (72.66.25.174)
There is nothing wrong with either alternative. Do what sounds best to you in your room with your system. Personally, I have a similar situation, and I choose the higher level of phono gain. But I wou .......
142: Vinyl Asylum, RE: Thanks, do you have a head shell recommendation? nt (0.00)
Posted by Lew on 2022-07-12, 21:04:06 (72.66.25.174)
I use Ortofon LH9000 with my Urushi. The LH9000 weighs 18g. .......
143: Vinyl Asylum, "Preamp" (0.00)
Posted by Lew on 2022-07-10, 09:47:39 (72.66.25.174)
The chassis says it's a "pre-preamp". This may indicate it is to be used as an active gain stage ahead of a phono stage with gain adequate only for an MM cartridge (e.g., ~40 db). Therefore it will no .......
144: Tweakers' Asylum, RE: There is no way to get that UL approved. :-) (0.00)
Posted by Lew on 2022-07-04, 08:44:52 (72.66.25.174)
But you wouldn't market the device as a "fuse". You'd market it as some sort of tester to be used only under certain safe test conditions. (As if going without a fuse is ever safe.) .......
145: Vinyl Asylum, Gorgeous 58 or 59 Lincoln (0.00)
Posted by Lew on 2022-07-04, 08:21:02 (72.66.25.174)
Is that yours? Love it. .......
146: Speaker Asylum, Revel B15 subwoofer repair (0.00)
Posted by Lew on 2022-06-26, 09:37:49 (72.66.25.174)
My Revel B15 has died. I think it's the amplifier, not the woofer itself. Does anyone know of a competent repair shop for an issue like this? I could remove the amplifier/crossover network and send it .......
147: Tweakers' Asylum, It occurs to me.... (0.00)
Posted by Lew on 2022-06-22, 14:28:52 (72.66.25.174)
that a "no fuse at all" thingy would be a viable commercial product. Which is to say a device that is exactly the same size as the fuse itself, with end caps but a solid piece of heavy gauge wire inte .......
148: Vinyl Asylum, RE: Proper Anti-skate setting for SoundSmith Zephyr MIMC on VPI Prime (0.00)
Posted by Lew on 2022-06-12, 06:12:42 (100.37.234.148)
There is no single correct setting for AS, because the skating force varies constantly from outer to inner grooves. One approach is to listen to a typical LP with zero AS. You should hear distortion o .......
149: Vinyl Asylum, Manhattan Transfer are my guilty pleasure (0.00)
Posted by Lew on 2022-06-02, 18:23:01 (72.66.25.174)
Ny .......
150: Tube DIY Asylum, Be careful with that thing.... (0.00)
Posted by Lew on 2022-06-01, 11:17:37 (72.66.25.174)
You may find yourself in a parallel universe if you get to close. .......
151: Vinyl Asylum, Can you be more clear on how you arrive at your conclusion? (0.00)
Posted by Lew on 2022-05-28, 09:52:26 (72.66.25.174)
Have you made this estimate using an LP playing a pure tone at a single frequency, for example? Do you hear the problem when playing an LP with music on it, without regard to your measuring device? :: .......
152: Tube DIY Asylum, Are the Pearl coolers elasticized? (0.00)
Posted by Lew on 2022-05-26, 07:58:50 (108.48.14.101)
The salient question is my 7241s are 57mm in diameter. Should I order the coolers to be a bit less in diameter, for a snug fit? .......
153: Tube DIY Asylum, Thanks for that information... (0.00)
Posted by Lew on 2022-05-25, 09:13:26 (108.48.14.101)
The 7241 power triodes in my OTL amplifiers are only a few inches away from the input stage tubes, so I would want to be sure that putting a cooler on the 7241s will not adversely affect the much smal .......
154: Tube DIY Asylum, Effect of a tube cooler on adjacent tubes? (0.00)
Posted by Lew on 2022-05-25, 08:19:15 (108.48.14.101)
Since a tube cooler enhances the radiation of heat away from the tube, could that be bad for adjacent small signal tubes in the vicinity? And if you put a tube cooler on the adjacent tubes, where does .......
155: Vinyl Asylum, RE: For AR-XA owners, vinylengine and audiokarma poster, Steve Frosten, (0.00)
Posted by Lew on 2022-05-19, 06:26:50 (108.48.14.101)
I love the mid century modern packaging of the new spindle, but why did you feel the need to replace yours? It looks fine in your photo. .......
156: Vinyl Asylum, "Stickers" (0.00)
Posted by Lew on 2022-05-15, 07:43:21 (108.48.14.101)
Are you referring to the labels on each side of each LP? Mine are like ecl's; there's no mention of Analog Production on them. Black with white lettering. .......
157: Tube DIY Asylum, RE: Thermal runaway? (0.00)
Posted by Lew on 2022-05-14, 20:05:13 (108.48.14.101)
No, it was the tube. There is nothing at all wrong with the bias circuit. The only question in my mind is why did the bias current drift upwards over time sufficiently to send that one tube over the e .......
158: Tweakers' Asylum, Edison Price... (0.00)
Posted by Lew on 2022-05-14, 14:06:56 (108.48.14.101)
Used to be available in extra long length for thick walled cabinets. I don't know whether you can still find them. .......
159: Vinyl Asylum, Yes, that's the label... (0.00)
Posted by Lew on 2022-05-14, 13:57:48 (108.48.14.101)
Jeez, According to discogs, that release is worth some bucks. Not selling mine, ever. So is it in fact Analog Productions, as discogs suggests? The release date of 2003 coincides well with about the t .......
160: Vinyl Asylum, So what have I got here? (0.00)
Posted by Lew on 2022-05-14, 10:49:13 (108.48.14.101)
AP+11 is one of my all time favorite albums. I own an original copy in mint condition, and I have here in my hands a 45-rpm re-issue that says "Contemporary, Stereo S7568" and in tiny print on the bac .......
161: Tube DIY Asylum, Follow-up (0.00)
Posted by Lew on 2022-05-11, 07:50:28 (108.48.14.101)
I don't quite understand why bias current drifted upward over time, although I have a theory. But the bottom line is I found no problem with the bias circuit. I am going to install some output tubes a .......
162: Vinyl Asylum, You appear to lack only a partridge in a pear tree, (0.00)
Posted by Lew on 2022-05-07, 09:27:45 (108.56.79.41)
for the perfect vinyl experience. .......
163: Tube DIY Asylum, RE: Grid bias (0.00)
Posted by Lew on 2022-05-05, 08:16:35 (108.56.79.41)
Need to identify the problem before I speculate. I'll let you know. .......
164: Tweakers' Asylum, I agree the copper AN tants are excellent... (0.00)
Posted by Lew on 2022-05-04, 09:06:34 (108.56.79.41)
I just wouldn't pay the quoted cost per resistor for the silver version. Or for any other resistor. .......
165: Tube DIY Asylum, RE: Grid bias (0.00)
Posted by Lew on 2022-05-04, 08:30:51 (108.56.79.41)
I originally built the amplifiers in the late 90s with parts supplied by Atma-sphere. Back then I was more of a novice in the art of circuit design and understanding, so I had help from a local guy. W .......
166: Tube DIY Asylum, Grid bias (0.00)
Posted by Lew on 2022-05-03, 08:57:03 (108.56.79.41)
And I've now determined that's where the problem lies. The driver tube for that power tube tests ok on my Hickok, so it may be the potentiometer, which means the amplifier has to be moved to my baseme .......
167: Tube DIY Asylum, RE: Thermal runaway? (0.00)
Posted by Lew on 2022-04-30, 10:42:57 (74.96.187.191)
I am guessing that my Atma-sphere monoblocks weigh somewhere between 80 and 100 lbs each. When I did formerly transport them to the basement workshop, I would remove the cosmetic but heavy alu facepla .......
168: Tube DIY Asylum, RE: Thermal runaway? (0.00)
Posted by Lew on 2022-04-29, 17:02:39 (74.96.187.191)
Thanks. I'm planning to do exactly that experiment. .......
169: Tube DIY Asylum, RE: Thermal runaway? (0.00)
Posted by Lew on 2022-04-29, 12:53:43 (74.96.187.191)
Obviously, the best thing to do would be to open it up a priori. The problem is that the amplifier is now too heavy for me to carry in my old age. If you have ever seen an Atma-sphere MA2, old style, .......
170: Tube DIY Asylum, Thermal runaway? (0.00)
Posted by Lew on 2022-04-29, 10:38:34 (74.96.187.191)
Last night I had what was for me a bizarre experience. I own and use modified Atma-sphere OTL amplifiers. One of the ways in which my amps are unique is that I built them (from parts supplied to me ab .......
171: Tweakers' Asylum, RE: "the only thing silver would be the leads" (0.00)
Posted by Lew on 2022-04-29, 02:13:19 (74.96.187.191)
I have used Audio Note tantalum capacitors, but apparently not the "silver" ones, because the prices I paid were a bit below the cost of the best Texas Components (nude Vishays). The AN tants are inde .......
172: Vinyl Asylum, RE: did someone fire a run your mouth starting pistol? Because I could have sworn I heard something............... (0.00)
Posted by Lew on 2022-04-26, 11:29:40 (74.96.187.191)
I agree that the devices are of questionable value to say the least and the "science" of that advert is BS, but static charge on the surface of an LP is real and can reach very high values, in terms o .......
173: Tweakers' Asylum, RE: Do you even need them? (0.00)
Posted by Lew on 2022-04-22, 09:25:23 (74.96.187.191)
As an aside, "silver tantalum" resistors for apparently $60 each?!!! Only Audio Note could have the hubris to market such a product. Since the resistive element has to be tantalum, the only thing silv .......
174: Tweakers' Asylum, RE: Thank you. I have an LCR meter with Freq. and ESR . . (0.00)
Posted by Lew on 2022-04-21, 10:50:46 (74.96.187.191)
Wikipedia says that capacitor ESR is measured at 100 kHz for switched mode power supply components, at 120 Hz for linear power supply components or at resonant frequency for general use. .......
175: Vinyl Asylum, RE: Help! BIX turntable motor and circuit (0.00)
Posted by Lew on 2022-04-11, 09:22:59 (74.96.187.191)
Then your best bet, if you don't come up with an actual schematic or a knowledgeable Bix repair person, is to figure out what the resistor does in the circuit and then estimate what value (and at what .......
176: Tweakers' Asylum, RE: Music Reference Rm-200 Schematic (0.00)
Posted by Lew on 2022-04-09, 16:20:29 (74.96.187.191)
Whereas, RM was able to send me a very large scale schematic of a Beveridge direct drive amplifier, for a nominal fee, and also offered to sell me a copy of the Beveridge RM-1 preamplifier (which I di .......
177: Vinyl Asylum, RE: I have an SL1000 mk II and would take the new flagship Technics . . . (0.00)
Posted by Lew on 2022-04-08, 08:52:21 (74.96.187.191)
If you go to Tokyo to visit your son, you can walk into Yodibashi Camera, in the Akihabara section of Tokyo, and walk out with an SP1000R, for a great savings over the US prices. That would probably b .......
178: Vinyl Asylum, RE: Help! BIX turntable motor and circuit (0.00)
Posted by Lew on 2022-04-08, 08:46:46 (74.96.187.191)
Is the resistor blown completely beyond recognition? Does it have a series of multi-colored stripes on it? If so, can you make out the colors? If you can do that, we can figure out the value of the re .......
179: Tweakers' Asylum, RE: Music Reference Rm-200 Schematic (0.00)
Posted by Lew on 2022-04-07, 09:04:24 (74.96.187.191)
Call RAM in California. Although Modjeski has passed, they still have a presence. And they are helpful with schematics. No guarantees but worth a try. Also post your request on TubeDIY Asylum. ::: TOP .......
180: Vinyl Asylum, RE: SME debuts a new turntable (0.00)
Posted by Lew on 2022-04-03, 13:47:52 (74.96.187.191)
Like 50,000 US dollars was a "deal"? .......
181: OTL Asylum, RE: Futterman H-3 (0.00)
Posted by Lew on 2022-03-25, 13:28:09 (74.96.187.191)
DC Link? Looks like it, and Kemet makes such capacitors. Great idea. When I owned Futtermans, I also found very positive results by bypassing the output capacitors with high value film capacitors, eve .......
182: Vinyl Asylum, Your pants are always where you left them last night. (0.00)
Posted by Lew on 2022-03-25, 10:29:00 (74.96.187.191)
But I won't remember to buy the LP in July. .......
183: Vinyl Asylum, Ah, but they DO still make them like that. (0.00)
Posted by Lew on 2022-03-25, 09:49:42 (74.96.187.191)
After all, she is the proof. .......
184: Vinyl Asylum, Please remind me in July.... (0.00)
Posted by Lew on 2022-03-25, 09:48:30 (74.96.187.191)
Because I want that LP. I loved her up tempo rendition of "Everything Happens to Me". The song is a bit whiney as a ballad. I don't think she sounds anything like Sarah. Sarah had a once in a generati .......
185: Vinyl Asylum, RE: Possible To Use Ortofon MC2000 With SME V? (0.00)
Posted by Lew on 2022-03-20, 17:41:20 (74.96.187.191)
Happily listening to my MC2000 on my Denon DP80 as I write this. It passed the VTF test beforehand. And on the Kenwood it was definitely attracted to the SS platter sheet, not a motor element, because .......
186: Vinyl Asylum, RE: Possible To Use Ortofon MC2000 With SME V? (0.00)
Posted by Lew on 2022-03-20, 13:44:10 (74.96.187.191)
I really doubt there would be a problem, but the MC2000 does have a VERY powerful magnet structure that is arrayed along the belly of the cartridge body, therefore in close proximity to any magnetic m .......
187: Vinyl Asylum, RE: It was obviously recorded a second time for stereo... (0.00)
Posted by Lew on 2022-03-08, 05:44:41 (74.96.187.191)
The performers are still human, and you know how we are about doing the same thing exactly the same way, twice. Especially artistic types. .......
188: Vinyl Asylum, It was obviously recorded a second time for stereo... (0.00)
Posted by Lew on 2022-03-04, 19:45:50 (74.96.187.191)
if you listen to the mono and stereo versions, she doesn't even sing the same exact lyrics on two versions of the same tune. I've owned both versions for many years, yet I never noticed the different .......
189: Tube DIY Asylum, RE: This idea has been employed years past ... (0.00)
Posted by Lew on 2022-03-04, 10:42:52 (108.18.110.49)
I don't see an inductor between the HV secondaries and rectifier diodes, on the schematic. .......
190: Tweakers' Asylum, RE: info on BGT? (0.00)
Posted by Lew on 2022-03-01, 10:26:53 (74.96.187.191)
Since the BGT operates at ground potential (zero volts), and since there is no current flowing, it is hard to imagine why parts quality would make a difference. .......
191: Vinyl Asylum, RE: Classical vinyl San Francisco or Berkeley? (0.00)
Posted by Lew on 2022-02-24, 08:25:46 (74.96.187.191)
How about Tunnel Records in SF? So far as I can tell, it's not been mentioned so far. .......
192: Vinyl Asylum, RE: Two Brubeck comments (0.00)
Posted by Lew on 2022-02-17, 15:52:39 (74.96.187.191)
I had the privilege of hearing Marian McPartland perform on her 88th birthday, one for every key on the piano, as she quipped. This was at the Strathmore concert hall in Rockville, MD. She was absolut .......
193: Tweakers' Asylum, RE: resistance measurement, interconnects (0.00)
Posted by Lew on 2022-02-16, 15:13:52 (74.96.187.191)
Take a piece of steel wool and vigorously clean the leads on the one IC that measures "high". Then measure R again with the probes contacting the clean copper only. A difference of only 5 milliohms, a .......
194: Vinyl Asylum, I listened to my copy two nights ago (0.00)
Posted by Lew on 2022-02-15, 16:23:46 (74.96.187.191)
Although I am a Brubeck fan and own at least a dozen of his LPs, I had never auditioned "Last Set" prior to Monday. Nice. .......
195: Vinyl Asylum, The Chet Baker at Ann Arbor... (0.00)
Posted by Lew on 2022-02-15, 10:54:38 (74.96.187.191)
Was that recorded in the massive concert hall at UM? I went to a concert there over Thanksgiving featuring the Lincoln Center Jazz Orchestra. That venue rivals any I've heard in NYC or at the Kennedy .......
196: Tube DIY Asylum, RE: Of course there's a difference (0.00)
Posted by Lew on 2022-02-15, 08:40:22 (74.96.187.191)
If you want to feel the way you feel about it, there's nothing I can say. In practice, this new form of data collecting is a trivial matter in my book. And it's "capital gains", not income in the IRS .......
197: Tube DIY Asylum, Thanks,... (0.00)
Posted by Lew on 2022-02-13, 09:15:36 (74.96.187.191)
but no thanks. .......
198: Tube DIY Asylum, Your point is?? (0.00)
Posted by Lew on 2022-02-12, 10:09:31 (74.96.187.191)
Are you protesting the whole idea of paying a federal tax? That's a different ball of wax. .......
199: Tube DIY Asylum, Makes no difference (0.00)
Posted by Lew on 2022-02-12, 10:07:53 (74.96.187.191)
There is no difference between "per year" and "per transaction", because we pay federal taxes once a year. At the end of a tax year, all transactions that resulted in a long term capital gain would be .......
200: Tube DIY Asylum, RE: The IRS is Watching (0.00)
Posted by Lew on 2022-02-12, 10:03:11 (74.96.187.191)
Worst case scenario, if you cannot avoid reporting the transactions to IRS, is you would pay a long term capital gains tax. In my limited experience, IRS will usually take your word for the amount you .......
201: Tube DIY Asylum, RE: Ah but THERE is the rub, we can now be financially terrorized should IRS Choose.nT (0.00)
Posted by Lew on 2022-02-11, 13:22:00 (107.77.204.98)
Oh my god! No new power has been granted to IRS, and IRS has always had the power to "terrorize" you, if you cheat on your federal return, and if they catch you. 99% of the time they just make you pay .......
202: Tube DIY Asylum, RE: The IRS is Watching (0.00)
Posted by Lew on 2022-02-11, 08:48:45 (107.77.204.98)
It's relevant for any hobbyist, not just tube heads, but it is not a new tax policy or ruling. It goes back through my entire lifetime as a tax payer. Any profit you make by selling personal possessio .......
203: Tube DIY Asylum, RE: The IRS is Watching (0.00)
Posted by Lew on 2022-02-11, 06:12:25 (107.77.204.98)
What you describe has always been the case. The only new wrinkle is that apparently "Venmo, PayPal, and etc" will report transactions in excess of $600 to the IRS. That only means don't use those serv .......
204: Tube DIY Asylum, RE: But, how does it sound??? (0.00)
Posted by Lew on 2022-02-09, 11:36:52 (107.77.203.187)
In my opinion, almost any metallized or f&f capacitor sounds better than a black metallized Solen. .......
205: Vinyl Asylum, Thanks for the letter. (0.00)
Posted by Lew on 2022-02-09, 07:46:16 (74.96.187.191)
What bugged me about HP, in addition to his pomposity, was the obvious attempt to manipulate the reader by leaving out information that one could only acquire by waiting for the next or indefinite fut .......
206: Vinyl Asylum, RE: TAS letter to the editor 1990 (0.00)
Posted by Lew on 2022-02-09, 07:29:37 (107.77.203.187)
And you call yourself a "diplomat"! .......
207: Tube DIY Asylum, RE: It appears SOLEN/SCR does... (0.00)
Posted by Lew on 2022-02-09, 07:11:05 (107.77.203.187)
I thought it was impractical if not impossible to metallize Teflon, because it's...-. Teflon. Live and learn. .......
208: Tube DIY Asylum, I don't think metallized teflons are made by anyone (0.00)
Posted by Lew on 2022-02-08, 18:51:54 (107.77.203.187)
All Teflon's are film and foil. .......
209: Tube DIY Asylum, RE: Would cathode bypass capacitor at input stage affect output impedance? (0.00)
Posted by Lew on 2022-02-07, 13:46:51 (74.96.187.191)
Yes, but how would the choice to bypass or not to bypass the cathode R of the input tube affect the plate impedance of the output tube, assuming the circuit is conventional? As mentioned, I suppose th .......
210: Tube DIY Asylum, I asked because I understood you to be suggesting otherwise (0.00)
Posted by Lew on 2022-02-06, 06:50:05 (74.96.187.191)
But thanks for the clarification. .......
211: Tube DIY Asylum, Would cathode bypass capacitor at input stage affect output impedance? (0.00)
Posted by Lew on 2022-02-04, 10:10:56 (74.96.187.191)
If you use a bypass capacitor on the input/voltage amplifier stage of an amplifier that is insufficient in value to bypass all audio frequencies, would that in fact effect the output impedance of the .......
212: Vinyl Asylum, RE: Non Sota Eclipse Packages (0.00)
Posted by Lew on 2022-01-29, 08:03:24 (74.96.187.191)
Sometimes you just gotta pay the man. .......
213: Planar Speaker Asylum, What Acoustat amplifiers? (0.00)
Posted by Lew on 2022-01-27, 12:31:47 (74.96.187.191)
Are you talking about the direct-drive amplifiers once supplied with the Acoustat X? .......
214: Planar Speaker Asylum, RE: Are old Martin Logan CLS speakers throwaways? (0.00)
Posted by Lew on 2022-01-27, 12:29:55 (74.96.187.191)
Are these the original CLSs, with relatively high impedance? Do they still work, or what's wrong with them? Those speakers had lots of potential, once. .......
215: Vinyl Asylum, RE: Listening to "Charles Mingus Presents Charles Mingus" with my cat tonight. (0.00)
Posted by Lew on 2022-01-23, 05:13:11 (107.77.204.188)
Perfect! In live performances, Mingus also seemed a little irritated. .......
216: Tube DIY Asylum, RE: How do you like the bass produced by SET but not PP amp (0.00)
Posted by Lew on 2022-01-09, 08:23:08 (104.238.232.162)
Speakers? .......
217: Vinyl Asylum, RE: Reinforce Oracle Delphi IV Subchassis (0.00)
Posted by Lew on 2022-01-08, 06:46:12 (104.238.232.162)
In my experience reinforcing an OEM chassis or re-creating a chassis to make it stronger, these upgrades always have a great effect. So I think you are safe in a scribing at least a major part of the .......
218: Vinyl Asylum, I see on the left that you keep a heated device obviously to flatten... (0.00)
Posted by Lew on 2022-01-05, 12:06:38 (71.191.81.92)
warped LPs handy. Good thinking. And I agree the Mitchell is pretty. .......
219: OTL Asylum, RE: Why aren't OTL tube amps more popular? (0.00)
Posted by Lew on 2022-01-04, 10:19:10 (71.191.81.92)
Counterpoint SA4 was among those OTLs that contributed to the reputation for their unreliability, so far as I know. Didn't the SA4 use a servo mechanism to cancel DC at the output, in lieu of coupling .......
220: Planar Speaker Asylum, RE: Deeper bass without deeper-bass-speakers (0.00)
Posted by Lew on 2021-12-31, 09:19:08 (71.191.81.92)
From the photo, your 3.7s seem to be a bit too close to the back wall. Also, you could place some bass frequency absorbent materials behind the 3.7s, once you have created room by pulling them forward .......
221: Tweakers' Asylum, If you just need the metric screw,.... (0.00)
Posted by Lew on 2021-12-28, 16:02:00 (71.191.81.92)
have you tried McMaster-Carr? They seem to have every kind of (metric) hardware I have ever needed. .......
222: Vinyl Asylum, Your question contains an oxymoron...- (0.00)
Posted by Lew on 2021-12-25, 08:29:19 (71.191.81.92)
In my experience. .......
223: Vinyl Asylum, Static charge (0.00)
Posted by Lew on 2021-12-21, 09:56:50 (71.191.81.92)
In my experience, static charge will accumulate on an LP surface without any regard for how an LP was dried after washing or not washing. The act of removing an LP from its sleeve induces a charge. Wa .......
224: Vinyl Asylum, RE: How long to air dry after vacuuming with VPI? (0.00)
Posted by Lew on 2021-12-20, 13:34:41 (71.191.81.92)
+1, Plus I rinse with distilled water and THEN vacuum dry. No air drying. .......
225: Tube DIY Asylum, Julius Futterman virtually "invented" the OTL (0.00)
Posted by Lew on 2021-12-12, 13:44:08 (71.191.81.92)
Which is to say he conceived of a commercially viable circuit, formed a company, and sold his amplifiers originally under the name "Harvard Electronics". I won't say he invented the OTL, because I am .......
226: Tube DIY Asylum, RE: Coupling capacitor with parallel RC - any reason ??? (0.00)
Posted by Lew on 2021-12-12, 06:29:39 (71.191.81.92)
Mine is for a one off version with eight 6LF6s per side. I used to own the amplifiers . But it's huge and mounted on a board. I can try to photograph it. .......
227: Tube DIY Asylum, RE: Coupling capacitor with parallel RC - any reason ??? (0.00)
Posted by Lew on 2021-12-11, 15:00:40 (71.191.81.92)
Are C6 and R12 in fact parallel to C7? From looking at the schematic, it seems C6 and R12 may attach to the cathode of the first 6HJ5 tube. If you have an actual H3 in front of you, perhaps you know. .......
228: Vinyl Asylum, Tijuana Moods v1.0 and v2.0 (0.00)
Posted by Lew on 2021-12-11, 14:51:36 (71.191.81.92)
Both great LPs with very accessible big band jazz compositions by Mingus. Of course, Mingus Ah Um is also excellent. .......
229: OTL Asylum, RE: Tip for ESL fanatics (0.00)
Posted by Lew on 2021-12-05, 16:00:57 (71.191.81.92)
You'd never use it for most amplifiers, because it does not have sufficient current delivery for most amplifiers. Useful for CDPs, TTs, and some preamplifiers. They do break, however, and when they do .......
230: Planar Speaker Asylum, RE: Frank Sinatra hi fi 1965 (0.00)
Posted by Lew on 2021-12-04, 08:08:22 (71.191.81.92)
Bozak speakers, maybe? .......
231: Vinyl Asylum, RE: ME passed the microscope test at my house, too... (0.00)
Posted by Lew on 2021-12-01, 13:22:28 (71.191.81.92)
So I wonder why PL told a friend that his cartridge was damaged by ME and that his was not the first such damage that PL had seen. (Tiny fibriles entangled around the stylus and cantilever that PL eit .......
232: Vinyl Asylum, RE: ME passed the microscope test at my house, too... (0.00)
Posted by Lew on 2021-11-30, 15:19:30 (71.191.81.92)
Meaning that the act of playing an LP exerts more force than brushing with ME, or what? Even if you are correct, I will nevertheless refrain from brushing, except for my teeth. .......
233: Vinyl Asylum, ME passed the microscope test at my house, too... (0.00)
Posted by Lew on 2021-11-29, 23:27:50 (71.191.81.92)
And I have been using it ever since. Down and Up, never any other way. Also, dry, not wet. For a really dirty stylus, I have one of those vibrators. (Someone called them "ultrasound", but they are not .......
234: Planar Speaker Asylum, RE: I mentioned before about my Tripplite (0.00)
Posted by Lew on 2021-11-28, 06:50:51 (12.234.140.26)
Better with both than with Panamax alone? .......
235: OTL Asylum, RE: OTL looks a bit different... (0.00)
Posted by Lew on 2021-11-26, 09:27:48 (68.36.133.117)
I wouldn't suggest using a regenerator on an amplifier unless I knew the current capacity of the regenerator was far in excess of the amplifier demands. The Sound Lab bias supplies draw very very litt .......
236: OTL Asylum, RE: Tip for ESL fanatics (0.00)
Posted by Lew on 2021-11-24, 14:05:32 (68.36.133.117)
Did you get the part where I said I am not repairing the P300? I traded it for a brand new P3, so none of your concerns apply. .......
237: Vinyl Asylum, RE: Reed 2G/3P (0.00)
Posted by Lew on 2021-11-24, 14:00:49 (68.36.133.117)
You can get most any Reed tonearm in 9, 10.5, or 12-inch lengths. So all you need to do is figure out what length best fits your TT. Then, because they're surface mounted, adapting them to any TT is r .......
238: OTL Asylum, RE: clean power anyone? (0.00)
Posted by Lew on 2021-11-24, 08:59:02 (68.36.133.117)
PS Audio P3 makes 300W. That's roughly 2.5A at 120V. It also has a separate pair of outlets that can be used as a filter only. Those outlets can optionally filter up to 13A. .......
239: OTL Asylum, RE: Tip for ESL fanatics (0.00)
Posted by Lew on 2021-11-24, 06:18:11 (12.234.140.26)
My P300 was not new. PS Audio hasn't made that original series of power regenerators for years, maybe more than a decade. I inherited mine from the estate of a friend 5 years ago, and he owned it for .......
240: OTL Asylum, RE: Couldn't you get the same effect with regulated high voltage supplies (0.00)
Posted by Lew on 2021-11-23, 20:52:53 (12.234.140.26)
I'm using the OEM regulated HV supplies that SL supplies. All I can tell you is that regenerated AC is an improvement. My guess would be that maybe the filtering in the bias supplies is improved by cl .......
241: Planar Speaker Asylum, That's its audio output power in W (0.00)
Posted by Lew on 2021-11-21, 14:08:33 (71.191.81.92)
I found on line that its steady state power consumption is 300W, but at peak power draw it can require something over 1000W AC input. This would still be OK if you plugged it into your 2400W Tripplite .......
242: Planar Speaker Asylum, What is the current rating of the Tripplite vs the consumption of the Parasound? (0.00)
Posted by Lew on 2021-11-21, 10:03:18 (71.191.81.92)
nt .......
243: OTL Asylum, RE: Tip for ESL fanatics (0.00)
Posted by Lew on 2021-11-21, 06:11:09 (71.191.81.92)
The Shunyata is not a regenerator , I don't think, but a good filter may work as well. The current draw is tiny but the cleaner the DC voltage that comes out of the bias supply, the better. I guess pe .......
244: Planar Speaker Asylum, RE: not with a regenerator (0.00)
Posted by Lew on 2021-11-20, 12:49:29 (71.191.81.92)
Thanks, Story. So in your opinion your Tripplite filter improves the sound of your ESLs. Is that fair to say? .......
245: Planar Speaker Asylum, RE: AC power regenerator for ESL bias supply (0.00)
Posted by Lew on 2021-11-20, 12:48:08 (71.191.81.92)
Mike, Thanks for your response. I am curious to know what is "everything"? As you know, the P3 has its limitations in terms of current it can supply, unless you use the two outlets that can be switche .......
246: Planar Speaker Asylum, AC power regenerator for ESL bias supply (0.00)
Posted by Lew on 2021-11-20, 09:06:38 (71.191.81.92)
I had a low power PS Audio regenerator that needed something to do, so I hooked its output up to the bias supplies of my Sound Lab 845PX speakers. To my moderate surprise, this proves to be beneficial .......
247: Vinyl Asylum, More of a danger with a LOMC cartridge than with an HOMM type (0.00)
Posted by Lew on 2021-11-19, 14:34:31 (71.191.81.92)
But still, there is no need to do it in this case since swapping leads will eventually reveal the location of the problem. .......
248: Vinyl Asylum, RE: Coises!!! (0.00)
Posted by Lew on 2021-11-19, 10:57:03 (71.191.81.92)
Yeah, Beatles are a bit like KOB. Great but been there. (Actually I deliberately do not play KOB except once a year, maybe, and that way I do not tire of it.) .......
249: Vinyl Asylum, RE: Turntable signal drop out (0.00)
Posted by Lew on 2021-11-19, 10:50:56 (71.191.81.92)
When silver corrodes, it oxidizes to silver oxide, which is still an excellent conductor. Maybe the silver plating wears off over time. I wouldn't know. To the OP, now that you have exonerated your pr .......
250: Vinyl Asylum, Coises!!! (0.00)
Posted by Lew on 2021-11-19, 09:12:38 (71.191.81.92)
I suppose I will be drummed out by the Beatles cognoscenti for my ignorance of this history. At least I am on the path for Yellow Submarine, Abbey Road (my favorite of their albums, anyway), and Let i .......
251: OTL Asylum, RE: Fourier Panthers Inquiring About Reliability And History (0.00)
Posted by Lew on 2021-11-19, 09:01:47 (71.191.81.92)
As I wrote below, some of the later iterations of the Futterman design were faulty in their conception, where it deviated from the classic Futterman, and/or in their construction, and their resulting .......
252: OTL Asylum, Tip for ESL fanatics (0.00)
Posted by Lew on 2021-11-19, 08:55:14 (71.191.81.92)
Following the death of my closest local audiophile friend (for nearly 45 years), I inherited his PS Audio P300 power regenerator. This is their lowest output unit from their very first effort at power .......
253: OTL Asylum, Fourier and Futterman (0.00)
Posted by Lew on 2021-11-19, 08:50:24 (71.191.81.92)
After reading your opening post and associated question, my first thought was that you have the history backwards. It is not that Futterman amplifiers, designed and built by Julius Futterman, are or e .......
254: Vinyl Asylum, RE: A bit more on the Beatles and mono (0.00)
Posted by Lew on 2021-11-18, 09:51:36 (71.191.81.92)
Ironically, the (stereo) Abbey Road that is included in my stereo box set is clearly inferior sonically to my original pressing of Abbey Road, on Apple Records, that I bought new in ca 1971 and have p .......
255: Vinyl Asylum, My Brighton experience (0.00)
Posted by Lew on 2021-11-17, 16:25:38 (71.191.81.92)
That summer, I discovered Biryani, at a tiny Indian restaurant in Brighton. It was so spicy hot that my scalp would start sweating and my hair was drenched by the time I left the place. Yet I could no .......
256: Vinyl Asylum, Biryani in Brighton (0.00)
Posted by Lew on 2021-11-17, 15:11:46 (71.191.81.92)
That summer, I discovered Biryani, at a tiny Indian restaurant in Brighton. It was so spicy hot that my scalp would start sweating and my hair was drenched by the time I left the place. Yet I could no .......
257: Tube DIY Asylum, K71s (0.00)
Posted by Lew on 2021-11-17, 09:01:04 (71.191.81.92)
I tried some of those Russian polystyrenes a while back, because I was searching for high quality sound at low cost in a coupling capacitor. I was not impressed with the particular pair of K71s that I .......
258: Vinyl Asylum, Thanks very much for the info... (0.00)
Posted by Lew on 2021-11-17, 08:43:03 (71.191.81.92)
Your post explains a lot. For example, I also have some early Rolling Stones LPs on Decca UK label and in mono. These were inherited from the estate of a dear friend, so I was not sure of their proven .......
259: Vinyl Asylum, What's up with the Beatles in mono, anyway? (0.00)
Posted by Lew on 2021-11-16, 20:44:41 (71.191.81.92)
Their rise and fall as an active group encompassed the early to very late 1960s more or less. Stereo was in vogue already by the very early 60s. All the Beatles LPs that I and my wife bought new durin .......
260: Vinyl Asylum, Bill is great for SP10s, both Mk2 and Mk3, but.. (0.00)
Posted by Lew on 2021-11-15, 11:54:47 (71.191.81.92)
Bill was stumped by my Victor TT101, as were two other shops. JP Jones found and fixed the problem. (One of the PCBs had developed a crack that was hidden under a gob of factory solder and therefore i .......
261: OTL Asylum, Just noticed this post, November 14. (0.00)
Posted by Lew on 2021-11-14, 10:41:31 (71.191.81.92)
This explains my failure to follow up on SLOG. It's great to know that a similar 1:90 audio transformer is available. I had forgotten the vendor, so thank you for providing his identifiers. So far as .......
262: OTL Asylum, Tube inflation (0.00)
Posted by Lew on 2021-11-14, 10:31:20 (71.191.81.92)
I bought a gaggle of Brimar 6SN7GTY, I think, for reasonable bucks but that was probably 20 years ago. I have no idea what the "Y" indicates. Mine have a brown base and clear glass. .......
263: Vinyl Asylum, JP Jones? (0.00)
Posted by Lew on 2021-11-12, 21:43:26 (71.191.81.92)
He's available on-line at Fidelis Analog. With all due respect to Scott Frankland, I don't know why he would have special expertise with an SP10 Mk2. JP Jones does. .......
264: Vinyl Asylum, See if you can find the schematic on-line,,, (0.00)
Posted by Lew on 2021-11-11, 16:07:40 (71.191.81.92)
Most schematics will include a parts list. From that information, you can tell what electrolytic capacitors are needed. (Film capacitors last "forever", unless they are subject to voltages that exceed .......
265: OTL Asylum, RE: Calling it Quits at ~150 hours (0.00)
Posted by Lew on 2021-11-10, 09:41:47 (71.191.81.92)
The RCA 5692 was once the "cat's pajamas" among 6SN7 substitutes, but it lost favor over time. I used them in my MFA Luminescence back in the 90s, and then in my MP1. I think I also used them as drive .......
266: Tube DIY Asylum, I agree the TS-ED are great, but.... (0.00)
Posted by Lew on 2021-11-10, 09:15:02 (71.191.81.92)
are they still available? That is the question, I think. I use 12 of them (2000uF/200V for output supply filter) in each of my Atma-sphere monoblocks, but that installation was at least 10 years ago. .......
267: Tweakers' Asylum, If it "feels amazing".. (0.00)
Posted by Lew on 2021-11-05, 07:52:28 (71.191.81.92)
I would buy one just to feel it. .......
268: Tube DIY Asylum, What Heyboer won't tackle... (0.00)
Posted by Lew on 2021-11-05, 07:49:28 (71.191.81.92)
I talked to them several months ago about re-winding a Beveridge amplifier power transformer. I admit that's a scary job, since the PT develops ~1200V at the secondaries which is doubled and rectified .......
269: OTL Asylum, Or... (0.00)
Posted by Lew on 2021-11-05, 07:35:22 (71.191.81.92)
You could cut out a portion of the top of the chassis and install a whisper fan that directs air away from the tubes and up toward your ceiling. Or you could install a whisper fan at the rear of the c .......
270: Vinyl Asylum, "Wow" (0.00)
Posted by Lew on 2021-11-02, 12:23:59 (71.191.81.92)
When you started your thread title with the word "wow", I thought you were going to praise the re-issue for its sound quality, which would not be unusual for German pressings. .......
271: Vinyl Asylum, Bill Carlin is Phoenix and Mark Kelly developed a controller for 3-phase motors (0.00)
Posted by Lew on 2021-10-28, 16:38:53 (71.191.81.92)
Other than that, the above is all correct. .......
272: Vinyl Asylum, Got the Monument box set of 4 LPs (0.00)
Posted by Lew on 2021-10-27, 13:07:21 (71.191.81.92)
Quality of the 180g pressings is superb. I only wish my jazz re-issues were all as good in terms of warps, off-centeredness, and SQ. Spent the afternoon listening . Of the 4 LPs, I like the collection .......
273: Tweakers' Asylum, RE: x over, stacking capacitors (0.00)
Posted by Lew on 2021-10-26, 20:17:53 (71.191.81.92)
You're fine, but some tweakers would say you would be better off with two 16uF capacitors in parallel (or three 10uF capacitors in parallel). Right now, the audio bandwidth is not affected equally by .......
274: Vinyl Asylum, RE: Roy Orbison on LPs, anyone? (0.00)
Posted by Lew on 2021-10-25, 12:50:06 (71.191.81.92)
Funnily enough, my mother was an opera singer, and she had a 4-octave range, but of course..... she was a girl. I've nearly injured myself several times trying to sing "Crying" in Roy's key. I have to .......
275: Tweakers' Asylum, RE: My new SR Orange fuse! (0.00)
Posted by Lew on 2021-10-24, 18:56:11 (71.191.81.92)
I suspect the contact enhancer will do as much as a good fuse to improve the sound. .......
276: OTL Asylum, Check the fuse size (0.00)
Posted by Lew on 2021-10-24, 18:54:47 (71.191.81.92)
That will give you a ballpark idea of the current draw; it will always be comfortably below the fuse rating, at idle. 20A could run a gaggle of MA1s. (Don't ask me how many amplifiers in a gaggle.) :: .......
277: Vinyl Asylum, I think I am going to be all set with Roy.... (0.00)
Posted by Lew on 2021-10-22, 15:11:33 (71.191.81.92)
I ordered the 4-LP set on Monument, to go with Wilbury Vol 1. Thanks, guys. .......
278: Vinyl Asylum, 4-LP Monument set on 180g vinyl, "The Monument Vinyl Box" (0.00)
Posted by Lew on 2021-10-22, 13:01:29 (71.191.81.92)
The LPs are in stereo. Does anyone have a listening impression, for SQ? Thanks. .......
279: Vinyl Asylum, Thanks. (0.00)
Posted by Lew on 2021-10-22, 12:58:32 (71.191.81.92)
I am feeling inadequate in that I never knew about this collaboration. But soon I will hear Volume 1, as I just ordered a new copy of a Concord re-issue, off eBay. I'd rather have an original, but I j .......
280: Vinyl Asylum, Just ordered a copy of Traveling Wilburys Vol 1 (0.00)
Posted by Lew on 2021-10-22, 12:36:22 (71.191.81.92)
It's a new LP, reissue on Concord in 2016. Maybe that is the one that MF liked so much. .......
281: Vinyl Asylum, RE: Roy Orbison on LPs, anyone? (0.00)
Posted by Lew on 2021-10-22, 11:40:56 (71.191.81.92)
The woman who sings "Crying" in Spanish (Llorando) in the movie Mulholland Drive also does a fantastic job. I agree with you that R O had an incredible capacity to elicit an emotional response and mak .......
282: Vinyl Asylum, RE: Roy Orbison on LPs, anyone? (0.00)
Posted by Lew on 2021-10-22, 09:23:15 (71.191.81.92)
Is that the name of the album, "The First Wilburys"? If not, how would I identify it? I had no idea that RO ever sang as part of a group. I guess that could be historically interesting, but I really w .......
283: Tweakers' Asylum, Agree! (0.00)
Posted by Lew on 2021-10-22, 08:13:24 (71.191.81.92)
Solens metallized film would be just about my last choice. .......
284: Vinyl Asylum, Roy Orbison on LPs, anyone? (0.00)
Posted by Lew on 2021-10-22, 08:11:29 (71.191.81.92)
I am a life long fan of Roy Orbison (Elvis's favorite singer). I am even guilty of doing Roy's songs at karaoke bars in Tokyo. And "Llorando" is my favorite moment in "Mulholland Drive". I am also a b .......
285: Tweakers' Asylum, Meant to write ".01 or .02uF". Sorry (0.00)
Posted by Lew on 2021-10-13, 18:03:17 (71.191.81.92)
nt .......
286: Tweakers' Asylum, RE: Not such a hard rule (0.00)
Posted by Lew on 2021-10-13, 10:05:28 (71.191.81.92)
Yes, we are talking about stand alone phono stages or full function preamplifiers, certainly not amplifiers, and I do know how tube amplifiers are generally configured. Thanks. I never dreamed we were .......
287: Tweakers' Asylum, RE: Dynaco PAS3 schematic (0.00)
Posted by Lew on 2021-10-13, 10:02:47 (71.191.81.92)
Well, you just changed your claim from .01 to .02uF to higher values. The Z that determines bass cut-off is the parallel sum of the input Z of the driven component and the output Z of the driver. But .......
288: Tweakers' Asylum, RE: Dynaco PAS3 dash II - the I is (0.00)
Posted by Lew on 2021-10-13, 10:00:08 (71.191.81.92)
Can someone post a schematic or name a preamplifier that actually did use an output coupling capacitor as low in value as .01 or .01uF? I'm curious. I would argue that in the "modern" era (say 1965 to .......
289: Tweakers' Asylum, Dynaco PAS3 schematic (0.00)
Posted by Lew on 2021-10-12, 15:22:22 (71.191.81.92)
Here's a Dynaco PAS3 schematic. The output coupling capacitor value is 1.5uF, so far as I can make out. (It's difficult to read.) So I don't see how your claim holds up at least for this well known an .......
290: Tweakers' Asylum, RE: Not such a hard rule (0.00)
Posted by Lew on 2021-10-12, 15:18:32 (71.191.81.92)
Really? As an output coupling capacitor value? Can you post a schematic of any of those you named? .......
291: Tweakers' Asylum, RE: Sorry to have created some consternation... (0.00)
Posted by Lew on 2021-10-12, 15:17:09 (71.191.81.92)
Yes, I certainly do know that. I replaced the OEM ones with ELNA Silmic II. I have also used Auricap 10uF/400V in that position with success, but I decided to stick with an electrolytic in this amplif .......
292: Tweakers' Asylum, RE: Excellent fuse review (Acme vs. Acme vs. Synergistic) (0.00)
Posted by Lew on 2021-10-12, 09:56:39 (71.191.81.92)
Just based on cost, I have been using Acme silver cryo fuses for years. And I am not a believer in fuses. I use them (in critical applications) just in case. Much like an agnostic will occasionally pr .......
293: Tweakers' Asylum, RE: "MKT 1822" (0.00)
Posted by Lew on 2021-10-12, 09:03:52 (71.191.81.92)
I don't want to get into an argument about how capacitors sound, but to my ears in my system, the very best most transparent capacitors are the Russian SSG (silver mica) types. The problem is their la .......
294: Tweakers' Asylum, RE: Sorry to have created some consternation... (0.00)
Posted by Lew on 2021-10-12, 08:58:23 (71.191.81.92)
I must be hallucinating, in that case. If it helps you to calm down, this is the solid state input PCB from a Beveridge Audio direct-drive amplifier, which has a tube-based output stage. I have pos .......
295: Tweakers' Asylum, RE: Not such a hard rule (0.00)
Posted by Lew on 2021-10-12, 08:55:28 (71.191.81.92)
No need to get huffy about it. To be clear, I am referring to output coupling capacitors, capacitors placed right at the output. In tube phono stages or linestages that I have taken apart, I have neve .......
296: Tweakers' Asylum, Sorry to have created some consternation... (0.00)
Posted by Lew on 2021-10-11, 17:05:44 (71.191.81.92)
All values are below 0.1uF, and it turned out that at that level even HV capacitors are small enough to fit. My secondary goal was also to save some $$$, but using parts you already own is also a way .......
297: Tweakers' Asylum, Not such a hard rule (0.00)
Posted by Lew on 2021-10-11, 17:02:29 (71.191.81.92)
sony, I respectfully beg to differ, tube gear often requires high value coupling capacitors, if you are going to be driving solid state components downstream, which, as you know, tend to have low inpu .......
298: Tweakers' Asylum, RE: PAYDIRT (0.00)
Posted by Lew on 2021-10-11, 17:00:28 (71.191.81.92)
I think I once took apart a Moore-Frankland preamplifier that must have been 1990s vintage. It had Electrocube coupling capacitors, but since then I have never seen this brand. By description, they ap .......
299: Tweakers' Asylum, I ended up using capacitors I had on hand..... (0.00)
Posted by Lew on 2021-10-11, 16:58:36 (71.191.81.92)
All the values are below 0.1uF, and I had good ones rated for 400V to 600V at all the values I needed. At least I reduced the size of my stash, which rhymes with "trash". Thanks for the tip on the WIM .......
300: Tweakers' Asylum, RE: Best sounding low voltage coupling capacitors (for a solid state circuit) (0.00)
Posted by Lew on 2021-10-08, 13:34:28 (71.191.81.92)
Mike always made a point about caps that operate with a DC bias across them vs those that are not biased, like loudspeaker crossover caps. I think his point is valid. RTX probably need a DC bias to so .......
301: Tweakers' Asylum, RE: There is no best , even the most expensive are just different (0.00)
Posted by Lew on 2021-10-08, 12:48:02 (71.191.81.92)
Electrocube capacitors still are made? That's a blast from the past. Yep, I know about VH Audio. I like them but was wondering about lower voltage caps that might also be smaller in size. .......
302: Tweakers' Asylum, RE: Best sounding low voltage coupling capacitors (for a solid state circuit) (0.00)
Posted by Lew on 2021-10-08, 12:46:25 (71.191.81.92)
Thanks. I am very familiar with the Vcaps, both types. They definitely are superb. I guess I was hoping for something I don't already know about. The VCaps are a bit large for the intended use. I am t .......
303: Tweakers' Asylum, RE: Best sounding low voltage coupling capacitors (for a solid state circuit) (0.00)
Posted by Lew on 2021-10-08, 12:44:37 (71.191.81.92)
Thanks, Tweaker. I have used all of those brands at one time or another. RTX used to be my favorite capacitor, before teflon film types became common (and expensive). By comparison, I have found I pre .......
304: Tweakers' Asylum, Best sounding low voltage coupling capacitors (for a solid state circuit) (0.00)
Posted by Lew on 2021-10-08, 09:31:08 (71.191.81.92)
I'm a tube guy wanting to buy a few boutique capacitors for a solid state circuit. The caps will be used for coupling stages. I can easily revert to using my go-to favorites, but they tend to be rated .......
305: Vinyl Asylum, Hoarding is what the other guy does.... (0.00)
Posted by Lew on 2021-10-08, 09:25:09 (71.191.81.92)
Collecting is what you do. .......
306: Vinyl Asylum, RE: Wright Sound AG-Phono (0.00)
Posted by Lew on 2021-10-05, 08:49:38 (71.191.81.92)
Post your request on Tubes/DIY Forum. Knowledgeable guys there can point you to a transformer company or even to a source for an off-the-shelf replacement transformer. You will only need to determine .......
307: Vinyl Asylum, RE: Genius! (0.00)
Posted by Lew on 2021-09-23, 16:23:09 (107.77.224.131)
Height of cuing device is adjustable so you should be able to have cake and eat it too. .......
308: Tweakers' Asylum, RE: Thumbs-up Schottky Diode Audiolab 6000cdt Transport Upgrade (0.00)
Posted by Lew on 2021-09-16, 10:34:30 (71.191.81.92)
Good idea, but are the top two diodes in each stack touching each other? At such low voltages, it may not matter. .......
309: Vinyl Asylum, Thanks (0.00)
Posted by Lew on 2021-09-16, 10:30:58 (71.191.81.92)
That much gain should work with nearly any LOMC via nearly any MM phono stage. .......
310: Vinyl Asylum, RE: Going To Experiment With a Conrad Johnson HV1 Active Gain With Tubes! (0.00)
Posted by Lew on 2021-09-16, 07:09:45 (71.191.81.92)
Gain added by HV1? .......
311: Tweakers' Asylum, RE: Schottky diodes.. (0.00)
Posted by Lew on 2021-08-17, 17:05:30 (72.66.65.213)
I think you will like the results, but bear in mind that this (upgrading the diodes) is usually not a Holy Cow type of upgrade, unless you are starting from something very mediocre. Still, it is very .......
312: Tweakers' Asylum, RE: Reinforcing Subchasis for Oracle Delphi IV Turntable (0.00)
Posted by Lew on 2021-08-17, 17:02:49 (72.66.65.213)
If it's not too late for feedback, I think what you are doing is a good idea just on general principles, and I would place no other material between the alu piece you are making and the bottom of the .......
313: Vinyl Asylum, RE: New Kronos Turntable (0.00)
Posted by Lew on 2021-08-16, 09:10:32 (72.66.65.213)
I liked the concept behind the Kronos products (counter-rotating platter), but this is wretched excess gone wild. I'd opt for their least expensive model, if ever I would be willing to spend even that .......
314: Vinyl Asylum, RE: New Kronos Turntable (0.00)
Posted by Lew on 2021-08-16, 09:08:22 (72.66.65.213)
Yes, but very difficult to set VTF in space. .......
315: Tweakers' Asylum, Schottky diodes.. (0.00)
Posted by Lew on 2021-08-11, 14:17:56 (72.66.65.213)
are the "best" sounding diodes for audio, based purely on their characteristics. Also, I agree with someone else who mentioned that you don't need HV diodes in this application. Low voltage Schottky d .......
316: Tube DIY Asylum, RE: Interesting - I'll try a 3.3uf cap in its place (0.00)
Posted by Lew on 2021-08-08, 12:46:52 (72.66.65.213)
If you don't like the 3.3uF solen, I would try another brand with a value greater than 1.2uF, like Tre suggested. Solen caps as couplers are just not good sounding in my experience. Like some others, .......
317: Tube DIY Asylum, RE: Recommendations for repair of a power transformer (0.00)
Posted by Lew on 2021-08-08, 09:24:24 (72.66.65.213)
As you probably know, the model 2SW is direct-drive to begin with. Also, the speaker panels are unique among ESLs in that the diaphragm is not biased and is low impedance. I have been intermittently a .......
318: Tube DIY Asylum, RE: Recommendations for repair of a power transformer (0.00)
Posted by Lew on 2021-08-05, 15:35:38 (72.66.65.213)
Thanks. I am at that point where I may as well try it, since it has been difficult finding anyone who would actually repair the PT. .......
319: Tube DIY Asylum, RE: Recommendations for repair of a power transformer (0.00)
Posted by Lew on 2021-08-05, 09:33:30 (72.66.65.213)
Yes, thanks. I have done that with one of the 36V secondary pairs. I replaced it with a Hammond 36V/0.5A transformer (36KD6 needs 450mA filament current). That reduced the magnitude of the oscillat .......
320: Tube DIY Asylum, RE: What I've done probably does not per se rule out external leakage or arcing (0.00)
Posted by Lew on 2021-08-04, 21:27:08 (72.66.65.213)
I do know the working voltages and have measured them many times. .......
321: Tube DIY Asylum, What I've done probably does not per se rule out external leakage or arcing (0.00)
Posted by Lew on 2021-08-04, 20:43:27 (72.66.65.213)
but can you amplify on how that would be detected? I have done a great deal of investigation and experimentation to identify the fault. There is not enough space here, nor would you want to read it a .......
322: Tube DIY Asylum, RE: Maybe contact this guy ... (0.00)
Posted by Lew on 2021-08-04, 18:41:04 (72.66.65.213)
If you mean "Lampie", I'll try that, thanks. I did send an email to another one of those guys on DIY audio who has played with beveridge transformers, but he never responded. What I have is an oscilla .......
323: Tube DIY Asylum, Recommendations for repair of a power transformer (0.00)
Posted by Lew on 2021-08-04, 15:44:28 (72.66.65.213)
I use a pair of Beveridge 2SW direct-driven ESLs. The PT has several pairs of secondaries, two of which separately supply 36V to the filaments of 36KD6 output tubes, and one of which supplies the HV t .......
324: Vinyl Asylum, +1 for leadbelly (0.00)
Posted by Lew on 2021-07-30, 14:48:25 (72.66.65.213)
I agree we are lucky Dave will take the time to respond to such questions as mine. Thanks again, Dave. .......
325: Vinyl Asylum, I guess this gets very complex if you think about it. (0.00)
Posted by Lew on 2021-07-29, 11:14:49 (72.66.65.213)
Thanks for your informative response, Dave. It raises more questions. What is the typical inductance of the primary winding of a phono SUT? The inductance of the typical LOMC cartridge coil is in the .......
326: Vinyl Asylum, The quote from Henley (0.00)
Posted by Lew on 2021-07-28, 17:19:50 (72.66.65.213)
They wrote, "Where phono stages, as part of their signal amplification, will have a constant resistive input impedance, Step-Up Transformers have an input impedance that is frequency-dependent." Sin .......
327: Vinyl Asylum, RE: Technics EPA-100 counterweight issue (0.00)
Posted by Lew on 2021-07-19, 06:13:02 (72.66.65.213)
Also you might put your question on the Audiogon Analog Forum. .......
328: Vinyl Asylum, Changing VTA.... (0.00)
Posted by Lew on 2021-07-13, 09:25:21 (72.66.65.213)
IS re-aligning the cartridge. Usually I would check P2S distance. If it is a mm or so off, I won't bother to fix that, because past experience tells me I cannot hear the difference. I would expect oth .......
329: Tube DIY Asylum, "Please do whatever you can.." (0.00)
Posted by Lew on 2021-07-12, 09:49:48 (72.66.65.213)
Which is to say, get vaccinated. .......
330: Tube DIY Asylum, RE: MORE HELP NEEDED! (0.00)
Posted by Lew on 2021-07-07, 19:57:03 (72.66.65.213)
Tubes are amazingly forgiving; you can make horrendous errors in setting up a circuit, and still you may get good sound. But that usually means that if you revise the circuit to take the best advantag .......
331: OTL Asylum, I think I can help here.... (0.00)
Posted by Lew on 2021-07-06, 09:05:40 (72.66.65.213)
I bought a pair of M1s around the late 1990s. I drove them with a pair of Atmasphere MA240s. That model was built on MA2 monoblock chassis and used six 6C33C Russian triode output tubes in lieu of a b .......
332: Tube DIY Asylum, RE: MORE HELP NEEDED! (0.00)
Posted by Lew on 2021-07-05, 06:38:06 (72.66.65.213)
I once purchased adapters from apparently that same vendor. From the photo it looks as though you have the right device going by the wrong name. Of course it's not really wrong, it's just another way .......
333: Tube DIY Asylum, What about... (0.00)
Posted by Lew on 2021-06-01, 12:24:58 (72.66.65.213)
this? .......
334: Vinyl Asylum, Tough question,... (0.00)
Posted by Lew on 2021-05-28, 10:17:10 (72.66.65.213)
because I haven't thought about it. Certainly the 45rpm version is very good. But I often choose not to play it, because I don't want to be jumping up to change sides nearly twice as often as normal. .......
335: Vinyl Asylum, RE: I'm surprised "none of it matters" to you (0.00)
Posted by Lew on 2021-05-24, 09:53:20 (72.66.65.213)
I have 4-5 versions, ranging from the original Columbia 6-eye mono that I bought when I was a teenager to several of the re-issues, including one of the 45-rpm versions. My point would be that ultimat .......
336: Vinyl Asylum, Yeah, but... (0.00)
Posted by Lew on 2021-05-23, 10:44:05 (72.66.65.213)
Grundman had to have used the original tapes from the late 1950s as the basis for his work in the 90s, or what am I missing? To me, none of this matters. KOB lives on because it was a moment of musica .......
337: Vinyl Asylum, Even though we are Not Yet There,... (0.00)
Posted by Lew on 2021-05-23, 10:37:21 (72.66.65.213)
next year's latest and greatest version of KOB is already sold out. .......
338: Vinyl Asylum, Apples and oranges (0.00)
Posted by Lew on 2021-05-08, 18:54:02 (96.255.88.163)
The one you cite seems to work optically. The expensive tach originally made by Phoenix Engineering and now made by SOTA uses a Hall sensor located between the underside of the platter and the upper s .......
339: Vinyl Asylum, RE: I always thought Canadians were nice... (0.00)
Posted by Lew on 2021-05-06, 09:00:18 (96.255.88.163)
Apart from the inference that PayPal is more expensive than the Canada option, I still don't quite get why you are so averse to using it if buyer and seller mutually agree to the PayPal cost. Especial .......
340: Vinyl Asylum, RE: Close call that ended well ... (0.00)
Posted by Lew on 2021-05-03, 10:40:46 (96.255.88.163)
It's a good idea to replace all electrolytics from the get-go, after purchasing a vintage direct drive turntable. It costs a few bucks for new capacitors, and it can save unobtainable ICs from damage. .......
341: Vinyl Asylum, Shelf life of Triton X100 (0.00)
Posted by Lew on 2021-05-01, 08:34:06 (96.255.88.163)
Far be it from me to contradict or argue with a DuPont chemist, but I ran a lab for 40 years, during which time we used the same single (plastic, 500ml) bottle of concentrated Triton X100, which we st .......
342: Vinyl Asylum, RE: No need to spend the xtra money for the 740. (0.00)
Posted by Lew on 2021-04-28, 14:35:21 (96.255.88.163)
Run the numbers and calculate resonant frequency. That should tell you if it even makes any important difference. .......
343: Vinyl Asylum, Good point! (0.00)
Posted by Lew on 2021-04-22, 08:12:29 (96.255.88.163)
That has happened to me. Also, autocorrect hates the word "cascode"; changes it to cascade, as it just now did. .......
344: Vinyl Asylum, That's what happens... (0.00)
Posted by Lew on 2021-04-21, 20:21:30 (96.255.88.163)
when the ad copy writer knows nothing at all about the technical aspects of the product or about the general subject. So, when that person transposes "cogging" into "clogging" and then he or she or so .......
345: Tweakers' Asylum, Mr Schultz clearly has read the "Emporer's New Clothes" fable (0.00)
Posted by Lew on 2021-04-21, 07:08:42 (96.255.88.163)
His ad copy has every element of the original story packed into it. When did the original "k" in "Rick" go out of fashion? Not that there's anything wrong with "Ric". .......
346: Vinyl Asylum, Thalmann installed the Krebs mod on my Mk3 (0.00)
Posted by Lew on 2021-04-19, 08:33:03 (96.255.88.163)
So, in a sense, Richard Krebs has a presence in the US. His mod makes a notable positive difference, once you are familiar with the before vs the after. .......
347: Vinyl Asylum, How could you not love a trumpet player named "Sweets"? (0.00)
Posted by Lew on 2021-04-19, 08:30:23 (96.255.88.163)
Frank wouldn't make a recording without him, back in the day. .......
348: Vinyl Asylum, No (0.00)
Posted by Lew on 2021-04-19, 08:28:10 (96.255.88.163)
That's not "normal". Sounds like a bearing noise that goes away once the lubricant, such as it may be, warms up or spreads across the surface of the bearing shaft. The solution is easy. Take off the p .......
349: Vinyl Asylum, See my response below, and... (0.00)
Posted by Lew on 2021-04-16, 07:58:29 (96.255.88.163)
I never grounded the table and never had any problem with hum. But I do use balanced phono from cartridge through to the speakers (XLR intput to balanced phono stage, balanced amplifiers, etc.) I agre .......
350: Vinyl Asylum, RE: Technics SP10 Mk3 owners - need some set-up advice (0.00)
Posted by Lew on 2021-04-16, 07:56:10 (96.255.88.163)
I think the threaded holes for the platter handle are M5 (5mm, metric), but check the thread size. Once I figured that out, I bought a few metric screws of appropriate thread size and 4-5 inches in le .......
351: Tweakers' Asylum, RE: and vice versa. (0.00)
Posted by Lew on 2021-04-15, 15:45:17 (96.255.88.163)
For my part, I have no criticism of the cables or power cords that I would base on "science". I am sure they do what they are supposed to do when in use. If you like them, you like them. What irks me .......
352: Tweakers' Asylum, RE: Anyone remember what the claimed science was for these.. (0.00)
Posted by Lew on 2021-04-15, 07:39:07 (96.255.88.163)
Wouldn't they need to be grounded, preferably to the wall socket? .......
353: Tweakers' Asylum, What would these "tests" prove to anyone but the two principals? (0.00)
Posted by Lew on 2021-04-15, 07:37:22 (96.255.88.163)
I still won't believe the large fraction of SR claims that make no sense, because they defy laws of physics. Note, I am not doubting every claim made for every SR product. Just some claims for some of .......
354: Vinyl Asylum, RE: Ilford Ilfotol use after expiring date (0.00)
Posted by Lew on 2021-04-13, 13:14:59 (96.255.88.163)
As noted on Audiogon and by Alaskahiatt, that stuff is for washing negatives and prints. It is probably a mixture of different chemicals, but it is mostly nonionic detergent. Nonionic detergents per s .......
355: Vinyl Asylum, Haaaa-haaaa-haaa (0.00)
Posted by Lew on 2021-04-12, 12:02:43 (96.255.88.163)
Nt .......
356: Tube DIY Asylum, RE: McMaster-Carr is ... a great company,... (0.00)
Posted by Lew on 2021-04-11, 16:46:32 (96.255.88.163)
and a vital asset to any DIYer, regardless of the hobby. (I actually rarely if ever have ordered audio-related parts from them, but my car hobby could not survive without them.) .......
357: Tube DIY Asylum, RE: LOL! Yeah, forgot about those. (0.00)
Posted by Lew on 2021-04-10, 14:48:00 (96.255.88.163)
Just to say that Michael Percy is on the US side of the border and ships promptly, whereas Parts Connexion is on the Canadian side, and I have experienced very annoying delays due to customs, when I'v .......
358: Tube DIY Asylum, Voltage rating difference between Kiwame and KOA Speer??? (0.00)
Posted by Lew on 2021-04-10, 14:45:06 (96.255.88.163)
I'm not sure if this is for real, because I have got both KOA Speer and Kiwame resistors on hand, and I see no physical difference at all, but the Kiwame's seem to have a higher voltage rating than do .......
359: Tweakers' Asylum, I think Jedrider has it right... (0.00)
Posted by Lew on 2021-04-09, 18:19:19 (96.255.88.163)
The thing wants to see some voltage above 12V at its input, probably because it has its own internal regulators that drop some voltage. If you don't feed it enough to trigger, it's dead. I had the sam .......
360: Tube DIY Asylum, KOA Speer (0.00)
Posted by Lew on 2021-04-09, 18:13:33 (96.255.88.163)
From Mouser, come in 5W values, I think. Carbon film. .......
361: Vinyl Asylum, I've got one of those too... (0.00)
Posted by Lew on 2021-04-09, 18:12:14 (96.255.88.163)
I guess everyone does. .......
362: Vinyl Asylum, Do you mean "AudioQuest", not "Acoustech"? (0.00)
Posted by Lew on 2021-04-09, 15:03:08 (96.255.88.163)
Anyway, I am not familiar with the Acoustech brush if there is one. I do own the new-ish AudioQuest brush with the contacts in the handle that supposedly allow charge to dissipate from the bristles vi .......
363: Tweakers' Asylum, Jensen is usually very helpful in sugesting how to use their products (0.00)
Posted by Lew on 2021-04-09, 11:21:52 (96.255.88.163)
I would consult them. They pick up the phone promptly, and you are usually talking to one of their smart guys. .......
364: Vinyl Asylum, No static charge? (0.00)
Posted by Lew on 2021-04-09, 08:41:29 (96.255.88.163)
Why wouldn't it generate a static charge on the surface of an LP? I don't see that it's grounded, and the ad copy doesn't even make a claim for anti-static properties. .......
365: Vinyl Asylum, RE: new AT OC9ZEN mc has excessive bass (0.00)
Posted by Lew on 2021-04-07, 13:12:26 (96.255.88.163)
Sometimes it's easier to just play a record. .......
366: Vinyl Asylum, RE: new AT OC9ZEN mc has excessive bass (0.00)
Posted by Lew on 2021-04-07, 09:32:16 (96.255.88.163)
Does the signal have way way too much bass when you actually listen to it through your speakers? I am assuming we are looking at the output from your linestage into the Korg. Correct? You mentioned an .......
367: Vinyl Asylum, What John said (0.00)
Posted by Lew on 2021-04-04, 13:14:39 (96.255.88.163)
Do you have reason to believe that the Blackbird PS is inferior in some way to the Dr Fuss supply, whatever that is? Or in other words, why are you thinking of an upgrade? .......
368: Vinyl Asylum, RE: MC Gain question (0.00)
Posted by Lew on 2021-04-03, 10:33:46 (96.255.88.163)
I am kind of surprised that 57 db of phono gain plus 18db gain from your linestage is insufficient total gain for your cartridge to drive the amplifier. Most amps can be driven to full output by about .......
369: Vinyl Asylum, RE: MC Gain question (0.00)
Posted by Lew on 2021-04-03, 09:11:15 (96.255.88.163)
Like Sondek implied, you need to factor in the additional gain afforded by your line stage, if you are using an active line stage. .......
370: Vinyl Asylum, RE: Have ditched diamond and gone back to sapphire needles. Love it! (0.00)
Posted by Lew on 2021-04-01, 08:42:16 (96.255.88.163)
I'm not gonna take the bait. It's the first of April. .......
371: Vinyl Asylum, RE: Adverted as CF. . . . (0.00)
Posted by Lew on 2021-03-30, 08:26:32 (96.255.88.163)
The headshell in the advert looks exactly like mine. To tell the truth, I never paid attention to whether it was labeled "CF" or not; I bought it because I wanted a heavy-ish headshell to mate with my .......
372: Vinyl Asylum, RE: Ortofon LH-9000 weighs 6 tons and won't work on my EPA-100 (0.00)
Posted by Lew on 2021-03-29, 14:21:20 (107.77.203.48)
LH9000 weighs 18g minus screws and nuts and is not made of CF. Oyaide and Yamamoto CF headshells weigh about 10g. .......
373: Vinyl Asylum, RE: Iron and magnets (0.00)
Posted by Lew on 2021-03-28, 08:45:02 (96.255.88.163)
Maybe I worry too much. It would be interesting to know what OMA would say to this question, but I am not about to ask. The iron plinth is targeted, it seems, to the SP10R, where the possibility of in .......
374: Vinyl Asylum, Thanks. (0.00)
Posted by Lew on 2021-03-27, 18:53:09 (96.255.88.163)
Think I'll take that leap. .......
375: Vinyl Asylum, Iron and magnets (0.00)
Posted by Lew on 2021-03-27, 10:15:45 (96.255.88.163)
I was aware of this product. What I wonder is, in the case of the SP10 Mk3, would the vast mass of iron surrounding the massive circular magnet structure (essentially, the rotor) that is attached to t .......
376: Tube DIY Asylum, RE: ok (0.00)
Posted by Lew on 2021-03-25, 19:23:37 (96.255.88.163)
Not a tube manufacturer, but I think Hageman does exactly as Tre' describes in at least one of his preamplifiers, maybe the Trumpet. Also, possibly Transcendent does this. I could be wrong on both cou .......
377: Vinyl Asylum, RE: the crowd hushed as captain grievances tees it up, and hits it a mile (0.00)
Posted by Lew on 2021-03-25, 10:11:26 (96.255.88.163)
In fairness to VPI, and just in case you got the impression that VPI might be making a turntable with a floating platter, a la the turntable under discussion, I think in this case the term "Maglev" is .......
378: Planar Speaker Asylum, RE: Try two pairs of KLH9s (0.00)
Posted by Lew on 2021-03-24, 16:38:49 (96.255.88.163)
KLH actually marketed a small angled brace for mating two speakers used in one channel. If you look closely at the base of your speakers, on the side where the tweeter is located, you will see some sm .......
379: Planar Speaker Asylum, RE: Frequency, etc (0.00)
Posted by Lew on 2021-03-23, 18:59:16 (96.255.88.163)
2.2M in all positions. Still, I got crazy and replaced 4 out of 6 on the oscillating amplifier, to no avail. .......
380: Planar Speaker Asylum, RE: Frequency, etc (0.00)
Posted by Lew on 2021-03-23, 15:48:05 (96.255.88.163)
As you say, I have been assuming that the value shown for R201 (10K) was in error on the schematic. Especially since on both of my actual amplifiers, R201 = R203 = 22K, with the attendant C202 = C204 .......
381: Planar Speaker Asylum, RE: Frequency, etc (0.00)
Posted by Lew on 2021-03-23, 13:14:12 (107.77.202.106)
Thank you for your excellent ideas. It is interesting to me, because I have an older schematic, dated 1977, in which the value of that ceramic capacitor is 290 pF, not 470 pF. Both of my amplifiers in .......
382: Vinyl Asylum, RE: "Abbey Road" advise... (0.00)
Posted by Lew on 2021-03-23, 10:28:06 (96.255.88.163)
This is one of my fave Beatles LPs. I have the early 70s pressing on Apple/Capitol, which I bought back then. I also have the MFSL, and a copy that came with my complete Beatles set, stereo version, t .......
383: Planar Speaker Asylum, I am not sure that information is current... (0.00)
Posted by Lew on 2021-03-23, 09:14:13 (96.255.88.163)
but I did notice that in the revived version of the amplifier, they used two large oil caps in series to filter the HV that goes to the stators and runs the SEPP tube topology at +/-3200V. Rather than .......
384: Planar Speaker Asylum, Funny you should suggest that... (0.00)
Posted by Lew on 2021-03-23, 09:10:23 (96.255.88.163)
I do know David, albeit not well. He was a good friend to my best audio friend who died 4 years ago, and I have been at David's house/factory some few years ago since my friend passed away. I did send .......
385: Planar Speaker Asylum, Frequency, etc (0.00)
Posted by Lew on 2021-03-23, 09:07:34 (96.255.88.163)
The amplifier oscillates somewhere in the circuit that feeds the stators. The oscillation can be detected via an oscilloscope probe held within an inch or two of the 7.5M resistor (R1), seen in the .......
386: Planar Speaker Asylum, Thanks (0.00)
Posted by Lew on 2021-03-23, 08:58:47 (96.255.88.163)
I knew that but brain did not cooperate .......
387: Vinyl Asylum, RE: I use 5-pad packs of sticky notes ... (0.00)
Posted by Lew on 2021-03-22, 08:16:08 (96.255.88.163)
That works best if the lined side is facing up on all the pads. Or if you have the blank version, which has a better mid range. .......
388: Vinyl Asylum, RE: As I said, more power to ya Lew. nt (0.00)
Posted by Lew on 2021-03-21, 16:28:32 (96.255.88.163)
Don't knock my cans of DelMonte Mandarin Orange slices in water, that I use as footers for both my Denon DP80 and my Lenco. They weren't made for audio either. (I am not seriously arguing, just messin .......
389: Planar Speaker Asylum, Try two pairs of KLH9s (0.00)
Posted by Lew on 2021-03-21, 13:37:28 (96.255.88.163)
You'll be amazed. Any beaming of the tweeter element is ameliorated, if you place the two speakers of one channel with tweeters toward the center and the two panels slightly at angles. I ran two pair .......
390: Planar Speaker Asylum, Help with Beveridge direct-drive amplifier oscillation (0.00)
Posted by Lew on 2021-03-21, 13:33:47 (96.255.88.163)
I have enjoyed a pair of 2SWs for about 5-6 years now. However, my pleasure is occasionally interrupted by prolonged periods of pain, as the direct-drive amplifiers unique to the Model 2 and 2SW are v .......
391: Vinyl Asylum, RE: Just pointing out the original use.... (0.00)
Posted by Lew on 2021-03-21, 11:48:04 (96.255.88.163)
ME may or may not be problematic, but nearly none of the accessories we commonly use were really developed purely for the benefit of audiophiles. It's hard to take such a purist approach to LP and sty .......
392: Vinyl Asylum, RE: When I was using it, I just laid a piece on the plinth next to the cartridge. (0.00)
Posted by Lew on 2021-03-21, 09:31:54 (96.255.88.163)
I have once or twice looked at stylus tips that have been treated many times over with magic eraser for cleaning, under a microscope. I haven't seen any signs of small fibers adhering to the stylus it .......
393: Vinyl Asylum, RE: Magic Eraser Holder? (0.00)
Posted by Lew on 2021-03-20, 15:04:09 (96.255.88.163)
I just keep a pad of ME next to my tonearm, and between sides I dab the stylus gently once or twice, up and down; never side to side or front to back. Some other early adapters would glue a small piec .......
394: Vinyl Asylum, RE: Shure mechanical vs. cheap electronic (0.00)
Posted by Lew on 2021-03-19, 08:56:05 (96.255.88.163)
The Shure SFG now sells new for about $30 and up. Surely you could justify spending that much or a bit more for a good digital scale, which in my opinion and experience is far more accurate, if you ar .......
395: Vinyl Asylum, RE: Wooly Bully (0.00)
Posted by Lew on 2021-03-19, 08:25:36 (96.255.88.163)
I've gotta have that LP. Will start a search. The cover is priceless. .......
396: Vinyl Asylum, RE: Sam the Sham (0.00)
Posted by Lew on 2021-03-19, 08:24:32 (96.255.88.163)
"Little Red Riding Hood" a stalker song? Ya think? .......
397: Vinyl Asylum, Wooly Bully (0.00)
Posted by Lew on 2021-03-18, 19:44:44 (96.255.88.163)
Was featured at many a great and alcohol-fueled frat party, in my day. .......
398: Vinyl Asylum, RE: i look at my other mounted cartridges often (0.00)
Posted by Lew on 2021-03-17, 15:01:18 (96.255.88.163)
Sometimes the ground connections are on top, with respect to the headshell, sometimes not. Sometimes no color code, just R, L, and GD. On some cartridges the hots and grounds are staggered. ::: TOPIC: .......
399: Vinyl Asylum, RE: i look at my other mounted cartridges often (0.00)
Posted by Lew on 2021-03-17, 14:31:44 (96.255.88.163)
Since I have so many turntables and tonearms, I do keep a scrap of paper under each stating the tonearm effective length, P2S, and effective mass. .......
400: Vinyl Asylum, RE: Tonearm wire color code.... (0.00)
Posted by Lew on 2021-03-17, 11:34:06 (96.255.88.163)
This is correct, yet I have to google it every time I mount a cartridge, which is all too often. I just don't trust my memory of it. .......
401: Tube DIY Asylum, RE: Well... (0.00)
Posted by Lew on 2021-03-17, 08:32:43 (96.255.88.163)
In my amps, each SLCF section drives only one output tube. This allows for me to bias each output tube individually, which I guess is also one argument for using a CF to drive a CF, in my case. ::: TO .......
402: Tube DIY Asylum, RE: Well... (0.00)
Posted by Lew on 2021-03-15, 12:32:27 (96.255.88.163)
Anyway, Pak described the circuit in the same way AW once proposed it. I use an SLCF as a driver stage, after having used a simple CF, then a CF with a CCS in the cathode beforehand. The SLCF is notic .......
403: Vinyl Asylum, "Showdown" (0.00)
Posted by Lew on 2021-03-14, 14:01:24 (96.255.88.163)
Just the other day I got out my copy, only to find it is hopelessly warped, enough to throw the stylus out of the grooves. I am binning it. .......
404: Vinyl Asylum, Anti-skate setting (0.00)
Posted by Lew on 2021-03-14, 12:08:49 (96.255.88.163)
On tonearms that provide an AS setting in units, should usually be much less (in grams) than VTF setting. Do not pay attention to instructions that might have come with some older tonearms. Do search .......
405: Vinyl Asylum, You mean like 9/11? (0.00)
Posted by Lew on 2021-03-13, 12:27:18 (96.255.88.163)
nt .......
406: Vinyl Asylum, Same question as Tre' (0.00)
Posted by Lew on 2021-03-10, 13:48:22 (96.255.88.163)
I'd also like to know what SS said. .......
407: Vinyl Asylum, RE: A little more detail (0.00)
Posted by Lew on 2021-03-10, 13:46:30 (96.255.88.163)
As long as we are going into a little more detail, there is no such thing, really, as "centrifugal force", although it is a handy concept. The centripetal force or "inside force" or skating force is t .......
408: Tube DIY Asylum, RE: Super Linear Cathode Follower? (0.00)
Posted by Lew on 2021-03-10, 11:46:29 (96.255.88.163)
The signal seems to go to the grid of the middle tube section, and the output is taken from the cathode of that same section, so...., at least it appears to act as a CF. .......
409: Tube DIY Asylum, Super Linear Cathode Follower? (0.00)
Posted by Lew on 2021-03-10, 09:32:37 (96.255.88.163)
A la the late Allen Wright? .......
410: Vinyl Asylum, You see that a lot in Japan... (0.00)
Posted by Lew on 2021-03-09, 10:29:48 (96.255.88.163)
Stores most often identify themselves on signs presented for public display, in English. For example, book stores often have big signs outside saying "BOOKS". But once you step inside, it's all in Jap .......
411: Vinyl Asylum, 60hz (0.00)
Posted by Lew on 2021-03-09, 06:34:30 (96.255.88.163)
It's direct-drive, so no pulley issues. Also, Eastern Japan, where most of the population live, is 50Hz. (I first wrote 60Hz, then realized I was incorrect; in Tokyo it's 50Hz. Can't change the headin .......
412: Tweakers' Asylum, Structure of a "nonpolar" electrolytic capacitor (0.00)
Posted by Lew on 2021-03-08, 09:23:07 (96.255.88.163)
A nonpolar electrolytic is made from two equal value polar electrolytics connected "back to back". Either the two negative leads are connected to each other or the two positive leads, inside the casin .......
413: Vinyl Asylum, RE: Because It Was There ... (0.00)
Posted by Lew on 2021-03-07, 17:51:25 (96.255.88.163)
You definitely got a good one, based on photos. Nice going! The Yamaha GT series must have been wildly popular in Japan back in the day, because among higher end turntables, they are very commonly see .......
414: Vinyl Asylum, RE: Why do you feel it is compulsory to attain a 1:7 ratio... (0.00)
Posted by Lew on 2021-03-01, 17:19:35 (96.255.88.163)
Thanks, John, but you have answered a question I didn't ask. I was wondering why Tre' didn't feel free to use a SUT with a lower turns ratio (e.g., 1:20), which I think would work with his cartridge i .......
415: Vinyl Asylum, Why do you feel it is compulsory to attain a 1:7 ratio... (0.00)
Posted by Lew on 2021-03-01, 11:18:37 (96.255.88.163)
between the internal resistance of the cartridge and the load at the phono input? I think of a ratio of 1:5 or 1:7 as a minimum ratio, and I usually find that ratios greater than those are also OK. Al .......
416: Tube DIY Asylum, RE: SRPP (0.00)
Posted by Lew on 2021-02-26, 09:09:09 (74.96.190.16)
I will go out on a limb and say that when you take the output from the cathode of the top tube, as in your schematic, the output impedance is low. That is one of the touted advantages of SRPP. ::: TOP .......
417: Tweakers' Asylum, RE: Mundorf ECap Direction (0.00)
Posted by Lew on 2021-02-21, 13:10:40 (74.96.190.16)
Part of the question is whether bipolar electrolytic construction is such that there even is an "outer foil" to worry about. My guess would be no, but it would be a guess. .......
418: Tweakers' Asylum, RE: Mundorf ECap Direction (0.00)
Posted by Lew on 2021-02-21, 13:08:40 (74.96.190.16)
Is it bipolar or no? If bipolar electrolytic, those are usually derived from two polar electrolytics, so in a sense you could say they are not subject to the "outer foil" orientation that is preferred .......
419: Vinyl Asylum, A solution to a non-existent problem (0.00)
Posted by Lew on 2021-02-19, 15:16:02 (74.96.190.16)
nt .......
420: Vinyl Asylum, Present tense? (0.00)
Posted by Lew on 2021-02-19, 15:06:05 (74.96.190.16)
The Citation 11 and 12 that at least I am thinking of came out in the mid- to late 1970s, and was some of their first SS products. I would certainly agree that any vintage HK gear using tubes was very .......
421: Vinyl Asylum, RE: Replacing My Electronics - Finally! (0.00)
Posted by Lew on 2021-02-19, 15:02:27 (74.96.190.16)
The Citation 11 received rave reviews in TAS by HP. When that happened, my audiophile friend and I felt we needed to have a listen. In keeping with John's opinion, we found it to be.... not so good. I .......
422: Vinyl Asylum, Mea culpa (0.00)
Posted by Lew on 2021-02-18, 19:28:44 (74.96.190.16)
Here's the thing with that: It's a drive system with a lot of compliance. I had totally forgotten the mechanism, so thanks for correcting me. I hadn't thought about that Clearaudio design in ages. On .......
423: Vinyl Asylum, RE: The magnetic drive (0.00)
Posted by Lew on 2021-02-18, 13:54:02 (74.96.190.16)
If you think about it, all DD turntables are "magnetic drive". Another case of hype. .......
424: Vinyl Asylum, RE: Already here, Mag-Lev TT.... (0.00)
Posted by Lew on 2021-02-18, 10:18:13 (74.96.190.16)
It's kind of like "Happy Fun Ball" from the now ancient SNL skit. .......
425: Vinyl Asylum, I'm reluctant to buy any LPs these days,... (0.00)
Posted by Lew on 2021-02-17, 16:37:43 (74.96.190.16)
because I have lost track of what I do and don't already own. This is in part due to my having "inherited" about 900 jazz LPs, from a close friend. Adding that many LPs at one swoop muddles the mind. .......
426: Vinyl Asylum, RE: Help - Vinyl noob with Denon DP-3000 'table and Denon DA-401 arm (0.00)
Posted by Lew on 2021-02-14, 08:48:52 (74.96.190.16)
Nagaoka? Consider the best of the Nagaoka's you can get for your price point. You probably need a high output cartridge of some kind for that phono stage, so MM types are in play. .......
427: Vinyl Asylum, RE: Another thread about the Hagerman Bugle 2. (0.00)
Posted by Lew on 2021-02-13, 11:07:16 (74.96.190.16)
Tre', What is the reason for R1? Seems to be in the wrong place for a gate-stop function. Thanks. .......
428: Vinyl Asylum, I heard him in concert not more than two years ago,... (0.00)
Posted by Lew on 2021-02-12, 15:53:55 (74.96.190.16)
and you would never have said his death, even at age 79, was to be expected. He was as dynamic and lively as ever. In fact, I would say he got better and better with age. This news is quite a shock to .......
429: Vinyl Asylum, RE: Chick Corea dead at 79 (0.00)
Posted by Lew on 2021-02-12, 08:06:02 (74.96.190.16)
One of the greatest jazz pianists who ever lived. I am so sorry to read this. I am a huge fan and always will be. .......
430: Tube DIY Asylum, RE: Source for Point to Point Wiring terminals ? (0.00)
Posted by Lew on 2021-02-11, 08:23:21 (74.96.190.16)
Check the michael percy audio catalog online. He's got some of those, depending on exactly what you need. .......
431: Vinyl Asylum, You could kind of tell that about BR on the Carson show (0.00)
Posted by Lew on 2021-02-09, 18:26:38 (74.96.190.16)
There was that nasty streak underneath, but Johnny was such a nice guy, and BR knew the value of being in Johnny's good graces, so he stifled himself more or less. .......
432: Vinyl Asylum, Two degrees of azimuth error... (0.00)
Posted by Lew on 2021-02-09, 18:20:34 (74.96.190.16)
is actually quite a bit of error. .......
433: Vinyl Asylum, With a very experimental VTA (0.00)
Posted by Lew on 2021-02-09, 18:18:49 (74.96.190.16)
Fremer ought to do a review on this revolutionary cantilever. .......
434: Tweakers' Asylum, RE: Thanks (0.00)
Posted by Lew on 2021-02-04, 09:02:16 (74.96.190.16)
The deal with a dedicated line is to isolate the grounds also from the house ground. To do that, you need to create a grounding system. One approach is to sink a long copper rod (8 to 12 feet?) into t .......
435: Vinyl Asylum, Agree (0.00)
Posted by Lew on 2021-02-04, 08:53:29 (74.96.190.16)
nt .......
436: Vinyl Asylum, Triton X-100 (0.00)
Posted by Lew on 2021-02-04, 08:35:49 (74.96.190.16)
I don't doubt you or your story about a leaky bottle of Triton X-100, but I do very much doubt that concentrated Triton X-100 could ever eat through its supplied plastic bottle. Triton X-100 is an imp .......
437: Vinyl Asylum, Well, apparently the whole system was unfamiliar to you, so... (0.00)
Posted by Lew on 2021-02-02, 19:38:05 (74.96.190.16)
maybe not fair to blame the Thorens for underwhelming sound. .......
438: Vinyl Asylum, Mikey needs a haircut. (0.00)
Posted by Lew on 2021-02-02, 19:36:05 (74.96.190.16)
Just like me. If only that WAS a Buick, he could drive it to his barber. Assuming both were vaccinated, of course. .......
439: Vinyl Asylum, Yes (0.00)
Posted by Lew on 2021-01-31, 15:43:38 (74.96.190.16)
nt .......
440: Vinyl Asylum, RE: old timey turntable isolation (0.00)
Posted by Lew on 2021-01-30, 10:32:38 (71.163.180.70)
I don't think the floor joists are included in the electrical analogue model, fortunately. Else you'd have to worry about the provenance of your floor. .......
441: Vinyl Asylum, I do use a concrete paver available from Home Depot, for isolation (0.00)
Posted by Lew on 2021-01-30, 10:13:15 (71.163.180.70)
Who knew the idea dates back to 1959? I don't own a spring-suspended turntable, however. The beauty of the paver from Home Depot? It probably cost me under $10. Seems to work at least "fine". ::: TOPI .......
442: Vinyl Asylum, Nordost Red Dawn (0.00)
Posted by Lew on 2021-01-28, 19:31:09 (71.163.180.70)
Is an older brew from Nordost. In my system, Red Dawn speaker cables made my ears bleed. Intolerably bright or strident or words to that effect. This was between an OTL tube amp and a pair of Sound La .......
443: Vinyl Asylum, I don't think the pandemic is going to be "over",... (0.00)
Posted by Lew on 2021-01-28, 09:45:47 (71.163.180.70)
in the sense that it will be like flipping a switch. The virus is here to stay, and it is up to us to find a way to get back to normal while protecting ourselves from it long term. The vaccines appear .......
444: Vinyl Asylum, Very nice grouping... (0.00)
Posted by Lew on 2021-01-27, 07:37:46 (71.163.180.70)
I love Coleman Hawkins, but most of my Hawkins LPs are probably 12-inch reissues of the stuff you've got there. Thanks for posting. .......
445: Vinyl Asylum, 12" cocobolo should be great with Urushi (0.00)
Posted by Lew on 2021-01-25, 18:55:40 (71.163.180.70)
That's one of their highest effective mass options, if not THE highest. Great combination. It took me a few years to admit to myself that there was something "missing" from the performance of the Urus .......
446: Vinyl Asylum, RE: Koetsu magic (0.00)
Posted by Lew on 2021-01-24, 12:18:04 (71.163.180.70)
I own an Urushi too. I can never keep straight whether mine is a Tsugaru or Wajima variant. But what is the effective mass of your 3P? I found that my Urushi likes very high effective mass tonearms. I .......
447: Vinyl Asylum, RE: Denon AU-250 -- is it worth using vs. an AU-300LC? (0.00)
Posted by Lew on 2021-01-24, 08:07:20 (71.163.180.70)
I have been around for a long time, and I have never heard of the Denon DL 300 cartridge. However, if the AU 250 is specifically tailored to the DL 300, perhaps you ought to check whether it is also w .......
448: Vinyl Asylum, "He pulled a gun on the Ramones"... (0.00)
Posted by Lew on 2021-01-18, 10:35:32 (71.163.180.70)
Shows he may have had some musical taste. .......
449: Vinyl Asylum, It's counter-intuitive, but... (0.00)
Posted by Lew on 2021-01-18, 10:34:06 (71.163.180.70)
at higher temperatures of the solder gun, you can get in and out much faster with actually less risk of overheating and damaging a part. The change from ~670 degrees with my Velleman to 750 degrees wi .......
450: Vinyl Asylum, RE: Craft Recordings one step of "Lush Life"..... (0.00)
Posted by Lew on 2021-01-17, 10:37:51 (71.163.180.70)
This is my favorite treatment of Lush Life by Coltrane... .......
451: Tweakers' Asylum, RE: monoblock input resistor value (0.00)
Posted by Lew on 2021-01-16, 12:34:20 (71.163.180.70)
Just based on the model designations you provided, it seems that the use of the potentiometer at the input came later than the use of the single value resistance (50E vs 50D). Have you used the 50E am .......
452: Tube DIY Asylum, RE: How high? (0.00)
Posted by Lew on 2021-01-16, 12:18:56 (71.163.180.70)
Thanks for that bit about not reforming a cap with high ESR. Sadly, that is the state of most of my ELNA Cerafines. Yet I cannot bear to throw them away; maybe I am hoping for a resurrection. I do own .......
453: Tube DIY Asylum, How high? (0.00)
Posted by Lew on 2021-01-15, 09:26:56 (71.163.180.70)
How for over spec would the capacitor have to be for you to conclude it is not salvageable? Or would it be prudent to try to re-form it and then re-check ESR? If at that point ESR is still high, perha .......
454: Vinyl Asylum, Where are you setting the temperature control? (0.00)
Posted by Lew on 2021-01-15, 08:50:15 (71.163.180.70)
My Haake came with a default to 750 degrees, and that's where I found it works very well, with lead-containing solder only. So far, I have been able to avoid lead-free solder. Before purchasing the Ha .......
455: Vinyl Asylum, RE: going to upgrade some caps, maybe some advice needed (0.00)
Posted by Lew on 2021-01-14, 08:58:55 (71.163.180.70)
I second what John wrote about a soldering station. Those devices maintain a constant controlled temperature. From what you say about difficulty in removing old solder, I am guessing you're using a we .......
456: OTL Asylum, Thanks. (0.00)
Posted by Lew on 2021-01-12, 10:03:33 (71.163.180.70)
It's been more than 25 years since I owned a Futterman type amplifier, so my memory of the circuit has faded. Good point. .......
457: Vinyl Asylum, All I saw was in German (which I cannot read), and... (0.00)
Posted by Lew on 2021-01-11, 14:20:10 (71.163.180.70)
what made me think it is coreless is the discus-like or flying-saucer-like shape which is characteristic of all coreless turntable motors I have seen, starting from the original Dual coreless motor, o .......
458: Vinyl Asylum, The shape suggests it is a coreless motor,... (0.00)
Posted by Lew on 2021-01-11, 12:02:05 (71.163.180.70)
which should be fantastic. .......
459: Vinyl Asylum, RE: Probably the Chesterfields and (0.00)
Posted by Lew on 2021-01-06, 15:18:24 (71.163.180.70)
For whatever reason, his voice did deteriorate in the last 10-15 years of his singing career, coincident with the return of his heavy NJ accent to his singing voice. Not that there's anything wrong wi .......
460: Vinyl Asylum, RE: Probably the Chesterfields and (0.00)
Posted by Lew on 2021-01-06, 09:27:48 (71.163.180.70)
Sure, vocal cords (or rather the whole structure that produces voice) age no matter what you do or don't do to damage them or it, but trained singers who exercise their voices daily can keep going and .......
461: Vinyl Asylum, Thanks. (0.00)
Posted by Lew on 2021-01-05, 13:07:10 (71.163.180.70)
That's the one. It always interests me that very early in his career, Sinatra completely eradicated his New Jersey accent. It's totally undetectable in this recording and in all his work up until the .......
462: Vinyl Asylum, RE: So I found this Sinatra album that I didn't even know I had... (0.00)
Posted by Lew on 2021-01-05, 09:08:00 (71.163.180.70)
As you probably know, the Sinatra station on Sirius XM does feature many other singers as well, but at least 50% of air time is devoted to FS. I wish they would play more hard core jazz singers, when .......
463: Vinyl Asylum, What I found... (0.00)
Posted by Lew on 2021-01-04, 19:16:01 (71.163.180.70)
The album I was thinking of must be "Where are you". Which does include "There's no you" and was orchestrated by Gordon Jenkins. I cannot find the Axel Stordahl album. I've got jazz vocals stashed at .......
464: Vinyl Asylum, RE: So I found this Sinatra album that I didn't even know I had... (0.00)
Posted by Lew on 2021-01-04, 18:57:01 (71.163.180.70)
He also is said to have said out loud to himself on one occasion during a recording session, at a point where he was unhappy with his performance, "Drink, drink, drink. Smoke, smoke, smoke. Shmuck, sh .......
465: Vinyl Asylum, "Wee small hours", the Sinatra album (0.00)
Posted by Lew on 2021-01-04, 18:52:31 (71.163.180.70)
Was 1955 or 56 and was originally in mono. There are stereo versions, probably derived from the mono, not originally in stereo. Johnny Mathis is the only one who recorded the verse to the song, "Wee s .......
466: Vinyl Asylum, That's it! (0.00)
Posted by Lew on 2021-01-04, 18:45:16 (71.163.180.70)
"Where are you" is the title of the album I was thinking of. However, I could be wrong about the orchestration; is it Stordahl? Certainly could be Gordon Jenkins. .......
467: Vinyl Asylum, I'll go find the LP in question... (0.00)
Posted by Lew on 2021-01-04, 18:43:29 (71.163.180.70)
Obviously my memory was faulty. .......
468: Vinyl Asylum, There is almost no standard that Sinatra did not record... (0.00)
Posted by Lew on 2021-01-04, 10:47:35 (71.163.180.70)
I dabble in jazz singing and have always been a Sinatra fan, but in the course of studying many dozens of songs based on my interest in singing them, I used to think that this or that song was not one .......
469: Vinyl Asylum, What's Abby Normal about it? (0.00)
Posted by Lew on 2021-01-03, 09:41:03 (71.163.180.70)
To me it looks like a very early SOTA, perhaps the kit version which my friend bought and assembled. Funny story: he connected the feedback circuit so it apparently gave positive rather than negative .......
470: Vinyl Asylum, RE: Last spins of 2020... (0.00)
Posted by Lew on 2021-01-01, 10:30:33 (71.163.180.70)
Was listening last night to Oscar Peterson/Milt Jackson, "Very Tall", and then to some Red Garland. What a lyrical and innovative pianist was Garland! Especially with standards. .......
471: Vinyl Asylum, Thorens TD125 with Rabco SL8 (0.00)
Posted by Lew on 2021-01-01, 10:28:46 (71.163.180.70)
For a year or two, that was "the cat's meow" in upper end audio. .......
472: OTL Asylum, RE: There are always solutions. (0.00)
Posted by Lew on 2020-12-25, 09:56:39 (71.163.180.70)
I don't think the output coupling capacitors required by the Futterman type design need to be high-voltage types, so you are probably OK in that regard. But upstream from the output the NYAL amplifier .......
473: Tube DIY Asylum, RE: His aggressive and dismissive on-line persona... (0.00)
Posted by Lew on 2020-12-24, 08:01:34 (71.163.180.70)
One amplifier done. Now doing the same to second amplifier. Fingers crossed. .......
474: OTL Asylum, RE: There are always solutions. (0.00)
Posted by Lew on 2020-12-23, 20:11:31 (71.163.180.70)
What's scary to me is that many of the Japanese companies that for a while made the best available high voltage electrolytics (Panasonic and Nichicon) have ceased or are in the process of cutting back .......
475: Tube DIY Asylum, Not a bad person... (0.00)
Posted by Lew on 2020-12-23, 20:03:41 (71.163.180.70)
After we figured out that we both had been devotee's of KLH 9 ESLs, back in the 70s, he sent me an old photo of him driving a late 50s Porsche Speedster, top down, with a pair of KLH9s perilously stic .......
476: Vinyl Asylum, RE: Can I Use A Y Splitter On My Phono Pre (0.00)
Posted by Lew on 2020-12-22, 09:54:42 (71.163.180.70)
If you can look inside the chassis's of your amplifiers, you should see a resistor connecting the hot input to ground. Or look for it at the grid (if tubes) or gate (if SS) of the first active device. .......
477: Vinyl Asylum, Everything he designed,... (0.00)
Posted by Lew on 2020-12-22, 08:32:44 (71.163.180.70)
whether it was a preamp, phono stage, turntable, or other, was a solid effort, always high quality, always something to reckon with at its price point. He and his work will be missed. .......
478: Vinyl Asylum, RE: In my opinion, you're correct... (0.00)
Posted by Lew on 2020-12-21, 12:38:43 (71.163.180.70)
I start out with zero anti-skate and listen to music. Usually, there will be obvious distortion in the R channel. Then I gradually add AS, a tiny amount at a time, until that distortion disappears. : .......
479: Tweakers' Asylum, Why the facetious tone? (0.00)
Posted by Lew on 2020-12-20, 14:04:23 (71.163.180.70)
As a matter of fact, I have had isodamp inside my preamp for probably 25 years. I used the word "probably" because I haven't spent a lot of time comparing it to other options. .......
480: Vinyl Asylum, RE: In my opinion, you're correct... (0.00)
Posted by Lew on 2020-12-20, 14:02:07 (71.163.180.70)
Far be it from me to argue with Ledermann and Schroeder, two guys whom I admire, but perhaps the reason that a grooveless LP "works" is because it puts you in the ballpark. And for AS, all you can hop .......
481: Tweakers' Asylum, Just be careful... (0.00)
Posted by Lew on 2020-12-20, 08:54:07 (71.163.180.70)
not to impede cooling. I would not encase a transformer in isodamp, for example. I'm sure this is obvious. I do believe in damping the interior of a chassis in spots that don't adversely affect ventil .......
482: Vinyl Asylum, What John said,... (0.00)
Posted by Lew on 2020-12-20, 07:49:16 (71.163.180.70)
Moreover, there is no term for velocity in the equation for friction. .......
483: Vinyl Asylum, I totally agree, but... (0.00)
Posted by Lew on 2020-12-20, 07:46:30 (71.163.180.70)
as you proved for yourself, the magnitude of the net skating force is constantly changing, so there is no way to have perfect anti-skate across the surface of the LP. But "some" AS is definitely neede .......
484: Vinyl Asylum, In my opinion, you're correct... (0.00)
Posted by Lew on 2020-12-19, 12:59:21 (71.163.180.70)
The skating force is due to the friction created between stylus tip and the groove. As such, it is not only a product of diamond sliding on vinyl but also of the contact patch between stylus and groov .......
485: Vinyl Asylum, "...stylus can't really read the groove correctly(?)" (0.00)
Posted by Lew on 2020-12-18, 11:36:07 (71.163.180.70)
I guess I know what you mean, but underhung tonearms are not per se low-fi, in my opinion. With no headshell offset, you still could benefit from anti-skate, if such a device was present, because ther .......
486: Vinyl Asylum, Slate with a hardwood base worked very well... (0.00)
Posted by Lew on 2020-12-16, 14:52:48 (71.163.180.70)
for me, for a plinth I built for Technics SP10 Mk3. .......
487: Tube DIY Asylum, What Alex M said, plus... (0.00)
Posted by Lew on 2020-12-08, 11:12:12 (71.163.180.70)
from a purist point of view, having the signal traverse two 47uF capacitors does not appeal to me, even though the first 47uF cap appears necessitated by the LCR circuit, maybe a case where the cure i .......
488: Vinyl Asylum, RE: It matters, but.... (0.00)
Posted by Lew on 2020-12-08, 10:19:07 (71.163.180.70)
So maybe he didn't market his 3-phase design, even in all SS mode. Kudos to you since you apparently have the knowledge and skill to convert yours to 3-phase operation. .......
489: Tube DIY Asylum, RE: The circuit (0.00)
Posted by Lew on 2020-12-06, 07:40:03 (71.163.180.70)
Are those really 47uF coupling capacitors, one before the LCR circuit and one at the output? I guess the marginal voltage rating (160V rating while seeing ~165V) is deliberate but would put me off a b .......
490: Vinyl Asylum, RE: VPI Classic 4 new motor (0.00)
Posted by Lew on 2020-12-06, 07:25:31 (71.163.180.70)
Could that aluminum shelf be partly the problem in transmitting motor noise to the tonearm and hence to the speakers? .......
491: Vinyl Asylum, It matters, but.... (0.00)
Posted by Lew on 2020-12-06, 07:23:26 (71.163.180.70)
none of the rest of us, who don't already own one, is ever going to be able to buy a Mark Kelly controller. He is out of the business, so the used market is one's only hope. I am sure his product woul .......
492: Vinyl Asylum, RE: What about this low mass tonearm? (0.00)
Posted by Lew on 2020-12-05, 08:43:21 (71.163.180.70)
In the list of specifications it says something about an air bearing. Where is the air bearing? It looks like it might be a Uni pivot, but nothing is said about the bearing type apart from that commen .......
493: Vinyl Asylum, Don't retire! (0.00)
Posted by Lew on 2020-12-04, 15:49:52 (71.163.180.70)
Or at least postpone until the pandemic has died away. There is not much to do in the present world except work. .......
494: Vinyl Asylum, In addition to what the other guys asked about,... (0.00)
Posted by Lew on 2020-12-02, 14:21:58 (71.163.180.70)
you leave the impression that your turntable was way out of wack in terms of its "levelness", if correcting the problem resulted in such an effect on both imaging and "pops and crackles". Was that the .......
495: Vinyl Asylum, Effective Length (0.00)
Posted by Lew on 2020-11-25, 07:57:29 (71.163.180.70)
Isn't that equal to the pivot to spindle distance PLUS the stylus overhang? In other words, effective length = pivot to stylus, not pivot to spindle. .......
496: Vinyl Asylum, Fair enough... (0.00)
Posted by Lew on 2020-11-18, 09:38:07 (71.163.180.70)
No reason to blame a guy for his misspent youth. KOB got me through more than one failed romance while I was in college. .......
497: Vinyl Asylum, I do the same, but most people don't.... (0.00)
Posted by Lew on 2020-11-17, 16:41:17 (71.163.180.70)
And I have never had an issue with hum in phono except once when I damaged the cartridge internally by yanking on one of the pins. .......
498: Vinyl Asylum, Cartridges don't hum intrinsically,.. (0.00)
Posted by Lew on 2020-11-17, 14:31:14 (71.163.180.70)
unless internally there is a broken connection on the side of the coil that should connect to audio ground. In that case, you hear a very loud hum. Otherwise, it's always something downstream and usua .......
499: Vinyl Asylum, And this is someone you still call "friend"? (0.00)
Posted by Lew on 2020-11-17, 09:21:03 (71.163.180.70)
nt .......
500: Vinyl Asylum, Hemostats for solder jobs... (0.00)
Posted by Lew on 2020-11-14, 10:59:13 (71.163.180.70)
Couldn't live without them. I have two or three different size hemostats that are in use when I am building stuff. Nice work, per the photo. .......
Found total of 500 records, Query: , Author: Lew in All Forums, Time: 3 sec.